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Expert Answers about Trailer Leaf Spring Suspension


  • Switching from Standard Equalizers to Road Armor Kit and Recommended Shackles + Bushings
  • You will be able to use the Road Armor Shock Absorbing Equalizers since they're fairly close in dimensions (6" wide x 3-1/4"). I recommend pairing these equalizers with the Never Fail Tandem Axle Suspension Kit # LC281285 which comes with 2 different lengths of shackle straps (3-1/2" and 4-3/8" bolt hole to bolt hole) to accommodate for the change in height, new bolts and bushings for your springs. One of the great things about this kit, aside from it being high quality and durable, is...
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  • Timbren Axle Less Suspension for Off-Road Trailer with 5 on 5-1/2 inch Bolt Pattern
  • We do have a Timbren Axle Less setup that can have the bolt pattern you are wanting of 5 on 5-1/2 inches if you went with the part # TASR1THDS04 and then the hub/drum # AKHD-555-35-EZ-K with the brake assemblies # AKEBRK-35-SA and you'd be set.
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  • Is There Any Advantage to Using 6K Leaf Spring on 3500-lb Axle on Tandem Travel Trailer
  • You would not like the ride quality with 6K-rated springs on the 3500-lb axles on your 2003 Dutchmen Lite travel trailer. In fact, since you (wisely) plan to replace all four leaf springs at once just having four new 3500-lb-rated springs will have the trailer suspension feeling stiffer than what you're accustomed to. The best way to go is to completely remove one of the springs so you can measure its eye-to-eye length without any tension on it. Do note that after years of use leaf...
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  • Hanger Kit and Slipper Spring Spacing for Tandem 7,000 lb Axles to Add 16 Inch Wheels
  • The spacing is going to depend on the size of your tires, so let's start with that. For a 16 inch wheel/tire combo with an 8 on 6-1/2" bolt pattern the best option is a ST235/80R16 size tire with a load range of G to handle the capacity of your tandem 7,000 lb axles. A ST235/80R16 tire will measure nearly 31 inches in diameter so if your axles centers are spaced 36 inches apart you will have plenty of room. For the slipper springs you were right on with the 5-Leaf Slipper Spring w/...
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  • Recommended Wet Bolt Kit for Lippert Road Armor Equalizers
  • You'll need to use wet bolts that have a 9/16" diameter for the Road Armor Shock Absorbing Equalizer Kit # LC696740. I highly recommend the Never Fail Tandem Axle Suspension Upgrade Hardware Kit # LC281285 because it comes with Never Fail bushings that don't require lubrication and they last longer than the standard bronze bushings do. This kit also comes with 3-1/2" long and 4-3/8" long shackle straps so you just need to choose which length suits your application best. Please note that...
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  • Could Road Armor Shock Absorbing Equalizer Kit # LC696740 Fit 2019 Keystone Cougar 30RLS
  • The distance between the horizontal mounting holes on the Lippert Road Armor Equalizers part # LC696740 is 6 inches. You'd want to measure the distance on the equalizers you currently have as we don't have that figure and you'd be able to compare and know. If the dimension you get is right at 6 inches you'd be good. If not, email me back what you find and I'll give you the best option you'd have. To upgrade your trailer suspension to the Never Fail setup that is self lubricating so...
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  • Correct Hanger Spacing for 5-Leaf Double-Eye Spring # SP-111275
  • The correct hangers that you need to use for the 5-Leaf Double-Eye Spring # SP-111275 and the Dexter Heavy-Duty Suspension Kit # K71-359-00 come in the Kit # H248. For your application these need to be spaced 29-1/2" apart on center. I have attached a diagram that demonstrates this for you. The leaf spring that you will be using is refereed to as "PR5" in the table.
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  • Parts Needed to Complete Axle-Less Trailer Suspension with 7000-lb Capacity
  • I have a solution for you, but because the Timbren Silent Ride # TSR14KT01 requires through axles, you would not be able to use this for your trailer that does not allow for tube axles to be used. I recommend that you use 2 pairs of the Timbren Axle-less Trailer Suspension # TASR7KS02 (4" drop spindle) or # TASR7KS01 (regular spindle) to create a tandem axle trailer system-without the axles. The Timbren systems above have a 7000-lb capacity with each set, which when you use 2 sets, would...
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  • Will Road Armor Shock Absorbing Equalizer Kit Help With Up and Down Movement Of Trailer
  • It sounds like you have a lot of up and down movement in your travel trailer while going down the road. The Road Armor Shock Absorbing Kit part # LC696740 is a better option then the MORyde kit to help eliminate some of that movement because it provides about 3" more of suspension travel capability for a smoother ride. The cushioned Road Armor system will absorb the road shock to help eliminate the up and down movement you are experiencing. I have attached the dimensions of the equalizers...
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  • SumoSprings for KZ Sportsmen Dual Axle Travel Trailer
  • The SumoSprings Trailer Helper Springs # TSS-107-40 are designed for single axle trailer applications, so for your tandem axle travel trailer, you'll just need two of these kits. These SumoSprings will fit your 2016 KZ Sportmen travel trailer as long as each of the axles is rated between 4,000 lbs and 8,000 lbs and they are overslung, where the springs sit on top of the axle. If your springs sit below the axle, which is the more common setup, you'll want to use two of part # TSS-106-40,...
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  • Will the SumoSprings TSS-106-40 Fit a Trailer with 5-1/2 Inches Between the Leaf Spring and Frame
  • The SumoSprings Trailer Helper Springs part # TSS-106-40 will fit your trailer even though you only have 5-1/2" of space between the top of the leaf spring stack and the bottom of the trailer frame. The overall height of the kit 7-3/4" (Spring 5" + Bracket 2-3/4") will exceed your measurements but what you can do is take a bread knife and cut one or two of the coils off the SumoSprings until they will fit under the frame. SuperSprings came to our facility for training and said that there...
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  • Can 6-1/4 Inch Long Equalizers be Replaced with 5-3/4 Inch Equalizers
  • The suspension kit, part # K71-359-00, will fit your toy hauler. It's only a 1/2 inch shorter so you're only losing a 1/4 inch on each side. If you really want to keep longer equalizers you can use the # K71-359-00 kit but replace the equalizers with part # TREQ356 that are 6-1/8 inches long.
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  • Will the Timbren Silent Ride Suspension TSR14K35T01 Work with a 14,000 Lb Trailer
  • The Timbren Silent Ride Suspension for Tandem Axle Trailers part # TSR14K35T01 will be perfect for your 14,000 lb 5th wheel trailer. The capacity only needs to be rated for the weight over the axles, not the entire weight of the trailer. Since you have a 5th wheel, 15-20% of the trailer's weight will be placed on the tow vehicle so this then puts you right in the sweet spot for the system which is about 80% capacity. That said, the Timbren Silent Ride Suspension cannot be ordered with...
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  • Replacement Wet Bolts and Bushings for Equa-Flex Trailer Suspension
  • Based on the 12,400-lb base weight of your 2016 Reflections 357BHS you should have the Equa-Flex Cushioned Equalizer # LC279688 which works with 6K to 8K axles. The wet bolt to use is part # LC126238; you will need 7 for each side of the trailer, so 14 in total. For Never Fail bushings use kit # LC279685, or for nylon bushings use # 721590.
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  • How To Choose Correct 3,500 Lb Axle for Slipper Spring Setup
  • In order to determine which axle is correct for your trailer we need to find out what your hub face (HF) and spring center (SC) measurements are. If you take a look at the photo I have attached for you that should then help with obtaining the above two measurements. The most important thing we need to look for is the hub face as the spring center can then be moved (within a range) if we need to. I have attached a list of the 3,500 lb axles we offer in the varying hub face and spring center...
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  • How to Determine Correct Replacement Slipper Springs for Triple Axle Trailer With 8,000 lb Axles
  • I can help you determine exactly what you need to replace the suspension in your triple axle trailer, although we don't have any type of database which has each part for each year, make and model of trailer that would tell us exactly what you have on your trailer, which means you'll need to do a bit of pretty simple measuring. Since you have a triple axle trailer, with three 8,000 lb axles you will need slipper springs for that axle capacity, for which we have two of that capacity. To...
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  • Parts Needed for Suspension Upgrade for 2018 Heartland North Trail 25LRSS Wide Stance
  • As long as the Equa-Flex Cushioned Equalizers # LC314336 have similar dimensions to your current equalizers then you can use it with 2 of the Dexter Heavy Duty Suspension Upgrade Kit # K71-358-00 like what you mentioned. For the sake of consistency though I do recommend using the Step Wet Bolt # 34007-187-00 with the Flange Nut # 006-092-01 as opposed to the Wet Shoulder Bolt # LC126238. The suspension upgrade kit has enough wet bolts for the shackle straps and the front/rear hangers...
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  • How to Determine Correct Slipper Spring Replacement for 1,500 lb Axle
  • What happens to slipper springs is that over time they elongate and flatten out, particularly if your springs are considerably older. The most important measurement you mentioned was the 26 inches from the center of the spring eye to the end of the spring. Based on that the closest slipper spring we have that could work is the 3-Leaf Slipper Spring w/ Radius End for 1,500-lb Trailer Axles - 24-5/8" Long # SP-178275, which would work if you had a tandem-axle trailer. There are no slipper...
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  • Adding Lift to 3,500 lb Trailer Axle
  • It's not a stupid question, it's a perfectly logical one but you should not flip the Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles # 7685269 to get rise as this was not the intended design as it is an underslung axle with spring seats that are intended to be on the underside of the axle. There is a way to add lift to a 3,500 lb axle such as the straight Dexter Trailer Axle Beam # 7359765. What you would use is called an over/under kit, which is commonly referred to as flipping...
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  • Picking Between Equa-Flex and Roadmaster Comfort Ride to Improve Ride Quality of Trailer
  • Yes, the Equa-Flex Cushioned Equalizers # LC314336 will fit as a replacement for your 2015 Keystone Springdale 282BH that has the equalizers you attached a picture of. This will make a noticeable improvement in the ride quality of your trailer which will translate into a smoother ride in your tow vehicle as well. The complete Roadmaster Comfort Ride Kit part # RM-2460-2560 would be your best choice for the ultimate improvement in trailer ride quality and is on a different level since...
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  • Recommended Hardware for Lippert Road Armor Shock Absorbing Equalizer Kit
  • The Road Armor Shock Absorbing Equalizer Kit - Tandem Axle - Qty 2 # LC696740 are for 3,500 lb all the way to 8,000 lb axles. Because axle spacing can be different I recommend the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285 which comes with different shackle strap lengths and the Never Fail Bushings so no maintenance is required. I've attached an article on trailer suspension to further assist as well as some videos to help.
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  • Should 3,500 lb or 5,200 lb Timbren Axle-Less System be Used for over 3,600 lbs of Loaded Trailer
  • Since your axle will ultimately be under the weight of your trailer and it's contents you definitely need to make sure that it is rated for more than what you will be carrying. You need to go with the 5,200 lb weight capacity. For this we have the Straight Spindle # ASR5200S01, 4" Lift Spindle # TASR5200S03, and 4" Drop Spindle # ASR5200S04. This is compatible with the idler hub # 8-213-5UC1-EZ or the hub and drum assembly # 8-201-5UC3-EZ. I recommend going with the hub and drum assembly...
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  • How to Determine Correct Replacement Leaf Springs for 7,000 lb Axle
  • I can give you some guidance on how to determine the correct replacement leaf springs, and you are right that replacing all four of them at the same time is a good idea. What you'll need to do for double-eye springs (which is what I assume is on your 2017 Keystone Fuzion) is measure from the center of one eye to the center of the other eye and get a match as close as you can. Just take into account that the springs may have elongated a bit over time. For example, the only double eye...
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  • Can the Spring Seats Be Moved on the Dexter 3,500 LB Drop Axle
  • The Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles part # 8327812 measures 89" long between each hub face and 74" long between each spring center. It is not offered with 89" between each hub face and 70-1/2" long between each spring center because the spring seats can be moved. The spring seats for this axle can be moved to a minimum of 75" apart and a maximum of 71" apart. Since you only need to go in 1/4" more on either side I would say you are fine to move the spring seats on...
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  • Will the Roadmaster Comfort Ride Shock Absorbers Fit a 2017 Grand Design Reflection 303
  • I spoke with my contact at Roadmaster about installing the Roadmaster Comfort Ride Shock Absorbers part # RM-2460 on your 2017 Grand Design Reflection 303 and they did not see an issue with attaching the upper bracket to the square tubing. They said the self-tapping screws that are included will be sufficient to hold the shock in place. If you like, we have a similar kit that attaches in a different manner, the Lippert Components Bolt-On Shock Kit part # LC281281 (2). That said, I don't...
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  • Recommended Off-Road Wheels and Tires for Timbren Axle-Less Trailer Suspension
  • Thanks for the purchase of the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 with the Dexter Trailer Hub and Drum Assembly # 8-201-9UC3-EZ which will be a great addition for your trailer; we definitely have wheels and tires that will be a perfect match. You will need a wheel with a matching 6 on 5-1/2" bolt pattern and I also recommend going with a bias tire because they have stiffer sidewalls than radial tires, meaning it...
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  • Replacement 1-1/2 Inch Square Axle for a Boat Trailer
  • I do have some options for you but none of our trailer axles match the exact measurements that you provided. Therefore, the best option we have for you would be to switch to an axle less system like the Timbren Axle-Less Trailer Suspension System part # A20RS545 which will replace the axle, leaf springs, and leaf spring hangers in light of a rubber suspension system that works to absorb road shock and support the trailers load better than standard leaf springs. The other option you...
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  • How to Find the Correct Replacement Equalizer
  • The Tandem-Axle Trailer Hanger Kit for Double Eye Springs # APT5 may have the correct equalizer but you will need to measure the current equalizer to find out. The length from the center of the left-most eye to the center of the right-most eye of your equalizer needs to be the same as the 7-3/4 inch measurement in this kit. Since you said the shackles are hitting the frame I recommend using a kit with a center hanger that is longer than the 3-3/4 inch hanger that comes with Kit # APT5....
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  • How To Determine Trailer Leaf Spring Replacement Based on Axle Capacity and Other Components Used
  • For your replacement leaf spring, there are a few things to consider. The number of springs in the stack doesn't determine the capacity, so you will need to know the capacity of your axle so you don't have springs that are too stiff or not strong enough for your application. For instance, if your springs are for a 3,500 lb axle, then the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27" Long # SP-210275 may be the correct replacement even though it is 4 leaf versus 6 because the...
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  • Availability of Trailer Axles With 72 Inch Spring Centers
  • The two relevant dimensions when replacing a trailer axle is the hub face to hub face of the existing axle and the center to center spring seat dimension. Are you sure about that spring seat center to center distance? The closest axles we offer are a 5200 or a 6000 lb axle with a 71-1/2 spring seat center to center dimension. All have a hub face to hub face dimension of 86-1/2 inches. I've provided a diagram showing these dimensions. We have a total of 4 axles available with these...
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  • Will Road Armor Equalizer Replace Equa Flex Equalizer # LC279687
  • The Road Armor Shock Absorbing Equalizer Kit # LC696740 that you referenced is close enough dimensionally to the Equa-Flex equalizer # LC279687 that you have now so it will fit and work well. Bushing come with this already pre installed, for bolts you'd want the part # TRFA73Z916DLNZ but for shackles you'd need to let me know what length you have currently. I attached a link to a page that has all of the shackles we carry as well.
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  • How Are Slipper Springs Attached to Equalizer and Hangers
  • The slipper spring hook of a slipper spring like part # SP-160275 attaches to the equalizer and the eye of the spring attaches to the hangers of Tandem-Axle trailer hanger kit part # APT6SE. I have attached a diagram of how slipper springs are setup. I have also attached a very helpful article that explains slipper spring setups.
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  • Replacement Equalizer Kit for Heritage 6,000 lb Boat Trailer
  • From the information that you gave me the correct replacement suspension kit for your Heritage boat trailer is the Dexter Heavy-Duty # K71-359-00. The equalizer uses the same dimensions and it's meant for 33" axle spacing as well. The only real difference is that your shackles show 3" for the bolt hole spacing while this kit is 2-1/4" on center, which might actually benefit your situation since your leaf springs are making contact with your trailer frame. Ideally your suspension should...
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  • Equalizer Hole Spacing in Dexter Heavy Duty Suspension Kit K71-360-00
  • The Dexter Heavy Duty Suspension Kit # K71-360-00 has equalizers are 7 inches from bolt hole center to center and 5-3/4 inches bolt center to center. This kit when used with double eye springs like # SP-198275 will give you the 33 inch on center axle spacing you desire. The max axle weight is 7,000 lbs each for this kit.
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  • Lippert Center Point Equilzer Upgrade Kit for 2018 Forest River Riverstone 39RKFB
  • The Lippert # LC1565391 Center Point air suspension is compatible with trailers that have axles up to 8K in capacity with 1-3/4 inch wide leaf springs and standard equalizer hangers that measure at least 2-1/2 Inches in height from the center of the bolt that fastens the equalizer to the spring hanger to the underside of the trailer frame where the hanger mounts. The equalizer needs to be at least 3 inches in width as shown in the diagram I provided. So as long as your trailer meets those...
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  • Help Picking Out Replacement Trailer Leaf Spring for Spring that Measures 26 inches Long With Load
  • I need two things to help you pick out the correct leaf springs for your trailer. I need to know the axle capacity of your trailer as well as the length from eye to eye without a load on your trailer. With those two pieces of info I can help you pick out the correct springs. A likely candidate for what you need is the part # SP-212275 which is for the very popular axle capacity of 3,500 lb and is 25-1/8 inches long. This would be about the right length when your spring doesn't have a...
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  • Can 3,500 lb Axles be Changed to 5,200 lb Axles and Parts Needed
  • The short answer is yes, you can replace your 3,500 lb axle with a 5,200 lb axle. The longer answer is that while you can change to a higher-rated axle, that does not mean your trailer has a higher weight capacity. The reason is, weight ratings are determined by the lowest-rated component, which can be something other than the axle, like the trailer chassis, for example. So you would need to ensure via the trailer manufacturer what the lowest-rated component is. With that said, in order...
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  • Recommended Trailer Suspension Shock Kit for 3 Inch Diameter Axles on 2019 Keystone Cougar 5th Wheel
  • The Lippert Components Bolt-On Shock Kit w/ Heavy Duty Gas Shocks - 5,200-lb to 7,000-lb (3") Axle # LC281281 are designed to be installed so that they are as directly aligned as possible. The vertical tilt is desired, but a horizontal tilt is not for best result. It can be done as shown in the attached photo, but it not ideal. Instead I recommend the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 5,200-lb to 7,000-lb Axle # RM-2460 which are designed for that...
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  • Replacement Suspension Components for 6,000 Lb Axles with 25-1/4 Inch Long Leaf Springs
  • Thanks for the photo! I have everything you need to get your trailer back on the road. I have attached my recommendations on the following parts for you trailer as well as the quantities needed. Leaf Springs: part # SP-111275 (4) Equalizers: part # TREQ310 (2) Shackle Straps: part # 115208GALV (8) U-Bolts: part # APUBR-8 (2) Eye Bolts: part # 166079 (12) I have also attached a few review videos on the above products for you as well.
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  • Replacement Galvanized Square Tube Axle for 2008 SeaLion Boat Trailer
  • We have something extremely close that will work for you. It is the CE Smith Trailer Axle Beam with EZ-Lube Standard Spindles - Galvanized - 57-1/2" Long - 1.8K # CE33201GA. It has the hub-face-to-hub-face length of 57-1/2 inches and the spring-center-to-spring-center length of 46-1/2 inches with the overall beam length of 62 inches. The only thing that you will need to change is the spring centers which is just a drilled hole for the square axles. There will be a difference with the...
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  • Where To Place the Leaf Spring Hangers On a Tandem Axle Trailer
  • The leaf spring hanger positions are largely dependent on which equalizers and leaf springs you will be using. For example, if you were to use the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs part # APT3 with the 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles part # SP-111275. The front and rear leaf spring hanger would need to be placed 29-1/2" in front and behind the center leaf spring hanger. The center leaf spring hanger would then need to be placed in between the two...
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  • Can Dexter E-Z Flex Suspension Kit Replace Dexter 13-10 Equalizer
  • Your 13-10 equalizers, which should be equivalent to Equalizer # TREQ310 measures 6-1/16 inches from bolt hole to bolt hole (see accompanying photo) and due to that you will need to use the E-Z Flex Heavy Duty Rubber Suspension System # K71-652-00. Your equalizers are not long enough to use the other kit you referenced; the replacements you select do need to measure up from bolt hole to bolt hole. I have added a link to a video review and video install for you to check out as well.
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  • Spacing Between Hangers With Slipper Springs for 8,000 lb Axles and Hanger Kit
  • I checked for you and when installing the 7-Leaf Slipper Spring w/ Hook End for 8,000-lb Trailer Axles # SP-285275 with the Tandem-Axle Trailer Hanger Kit for 2" Slipper Springs - 12" Long Equalizers # APT6SE the distance between the front and center hangers will be 28-1/2", the distance between the center and rear hangers will be 29-1/2", the distance between the U-bolts will be 33" and distance between the center of the axle and trailer frame will be 4-1/2". I made a diagram for you...
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  • Replacement Equa-Flex Cushioned Equalizers for Dexter Equalizer Part 13-122
  • The Equa-Flex Cushioned Equalizers part # LC279688 would indeed be the best fit replacement for the Dexter Equalizers part 13-122 you have now. However, as you mentioned the vertical bolt spacing will be about 2" taller which does indeed mean that the trailer will be raised but not necessarily the full 2". If you are looking for a cushioned equalizer upgrade that would not raise the trailer I recommend taking a look at the E-Z Flex Heavy Duty Rubber Suspension System by Dexter Axle part...
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  • Best Trailer Suspension Enhancement for Tandem 7,000 lb Axles
  • The SumoSprings Trailer Helper Springs - Single Axle - 3K to 8K - Underslung # TSS-105-47 will be a maintenance free option to help smooth out the ride of your trailer. These springs will act as shock absorbers and will progressively help with the load offering 1,000 lbs support at 50% compression. The Sumo Springs are a great option to help control the suspension. This will require 2 kits. The Timbren Trailer Suspension Enhancement System Medium-Duty Trailers 7,000 lbs # TTRA1032...
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  • Roadmaster Comfort Ride Leaf Spring Kit for Grand Design Solitude 3350RL
  • In order to determine which leaf spring upgrade kit will work on your Grand Design Solitude you will need to know what size axles and how many axles you've got on the trailer. You can determine what axles are on the rig by checking the sticker/plate on the axle tubes; these identifiers will tell you who made the axle, its' capacity and/or diameter and will determine which suspension system is going to work best for you. If you have tandem axles with a 7000-lb capacity and a 3" diameter,...
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  • Does the Lippert Road Armor Come with Mounting Hardware
  • The Lippert Road Armor # LC696740 does not come with the bolts you'll need for installation, so you'll still need the hardware. However, the # LC64FR you're referring to are only 3/8" wet bolts and you'll actually need 9/16" diameter wet bolts. The best solution is going with the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285, which come with self lubricating bushings, so you wouldn't need to use wet bolts. If you want to use wet bolts, the Wet...
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  • Which Leaf Spring Do I Need For A Lippert 5200 Lb Axle
  • The 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles part # SP-053275 is rated for 3,000 lbs which would be what you need for a little more capacity when replacing a 2,600 lb spring that is 26" long. I was able to find the answer from Kyle and he also recommends the SP-053275 as well in his answer, the 4-leaf spring part # SP-051275 is not enough capacity because although it's for a 4,000 lb axle it's only rated for 2,000 lbs. The SP-053275 is a 6 leaf spring which does not matter when...
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  • Comparing the Single-Axle Trailer Hanger Kits for Double-Eye Springs APS1, APS2, and APS3
  • When choosing between the Single-Axle Trailer Hanger Kit for Double-Eye Springs part # APS1, part # APS2, and part # APS3 it will be best to use the one that has measurements that most closely resemble what is already on your trailer. For example, if your rear leaf spring hangers are 7/8" tall or shorter than you would want to use part # APS1 but if they are taller then this you would want to use part # APS2 or part # APS3. The only difference between the two latter kits is that part #...
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  • Compatibility of the Suspension Kit for 6,000 lb Axle
  • The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links # AP233 is not only for under 3,500 lb axles. It is for 33 inch spacing. The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 3-1/8" Links # e99ZR and Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs # K71-359-00 are also for this same spacing. The leaf springs and the u-bolt mounting hardware varies based on axle capacity,...
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  • Is There a Timbren Axle Less Kit Setup that Fits Jeep Wheel Bolt Pattern 5 on 5 inch
  • We have to tell you that you shouldn't use Jeep wheels on a trailer as they weren't intended for use on a trailer. That said we know people do this all the time so you'd probably be fine. We've seen people use the Timbren Axle Less kits with Jeep Wheels too. Part of why the Timbren Axle-Less Trailer Suspension System with Hubs # A12WS545 is for "off road" tires is for this purpose so it's physically possible. The Jeep wheel bolt pattern is 5 on 5 inch like what the part # 84550BX has....
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  • Recommended Replacement Suspension for 6K Tandem Axles
  • Thanks for the measurements. I recommend using the 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 26" Long # SP-053275. Then use the Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 6-1/8" Long - 9/16" Center Hole # TREQ356 and the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285. If you prefer a heavier duty assembly with wet bolts, then use the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs...
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  • Can Leaf Springs be Moved to Top of Underslung Axle
  • You can absolutely use the underslung Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles - 95" Long - 3,500 lbs # 7685269 with leaf springs mounted to the top of the axle. In order to do this you will simply need the Dexter Trailer Springs Over-Under Conversion Kit # K71-384-00 which will work so long as you are using double-eye springs, and fit the 2-3/8" Dexter Trailer Axle Beam # 7685269. The Over/Under kit will lift it approximately the same amount as your axle's diameter plus...
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  • What is the Weight Rating on the Dexter Heavy-Duty Suspension Kit
  • The weight capacity for the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers part # K71-448-00 is really going to be determined by the spring and the tires on the trailer they don't have a specified weight rating. It is for use with 1 3/4" wide springs so let's take the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" part # SP-198275 this spring is rated for 3500 lbs. and is used on 7000 lb axles. It is the heaviest we offer so this kit that will connect two of these...
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  • Leaf Springs for 8K-Rated Axle
  • We do offer both double-eye and slipper-type leaf springs for many axle weight ratings. You can see all of these leaf springs on the page I linked for you. In the 8K axle capacity we offer two slipper-type springs. Part # SP-161275 is a 6-leaf slipper spring that is 29-1/2-inches long. Part # SP-285275 is a 7-leaf spring that measures 26-5/8-inches. Both are 2-inches wide. Please note that leaf springs tend to stretch when they are worn so the length of the old spring you remove...
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  • How To Choose the Correct Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
  • I don't have any information as to what leaf springs are on any one particular trailer such as a 2007 Jayco Jay Flight 29BHS but if they are double eye leaf springs which are the most common then we should have a Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers that will work. In order to choose the correct one you just need to make note of the equalizer dimensions; part # K71-449-00 for 7-3/4" long, part # K71-448-00 for 6" long, or part # K71-359-00 for 5-3/4" long.
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  • Replacement for Dexter Part Numbers 072-098-00, 011-017-01, and K23-464-00/K23-465-00
  • Absolutely, the Dexter leaf spring part 072-098-00 is a double eye spring, designed for 7,000 lb axles, with a 25-1/4" eye to eye measurement. The closest leaf spring we have to that is the Double-Eye Spring part # SP-198275 which is a double eye spring, designed for 7,000 lb axles, with a 24-7/8" eye to eye measurement. The 3/8" difference between the eye to eye measurements will not cause an issue. The Dexter u-bolt part 011-017-01 is a 1/2" diameter bolt, designed for 3" diameter...
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  • Will the Bolt-On Shock Kits for Trailers Work With Underslung Axles
  • I do have an option for you but the Lippert Components Bolt-On Shock Kit like part # LC281281 is designed for use on overslung axles (leaf springs over axle) only. Therefore, it should not be used with the underslung (leaf springs under axle) axles that you have. The reason for this is that the shock absorbers would not be long enough and there could be interference with the axle tube. Instead, I recommend using the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers part...
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  • Upgrade for Dexter Curved Equalizer 13-142
  • Yes, there is an upgrade for the Dexter Curved Equalizer part # K13-142-02 that you have on your trailer now and that is the Equa-Flex Cushioned Equalizers part # LC314336 which have a rubber core that minimizes back-and-forth movement in addition to helping absorb road shock. You can also add the Wet Equalizer Bolt part # 126B2 for an even greater upgrade to your existing suspension. I have attached review videos on both of the above items for you.
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  • Replacement 6k Rated Leaf Springs with Cushioned Equalizers for Tandem Axle Trailer
  • The 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles # SP-053275 that you referenced will work great on your trailer as it matches the capacity you need. The overall thickness of the spring pack is 2-1/4 inches which might be thicker than what you current have and could affect the height of the trailer. For a U-bolt kit you would need the part # APUBR-8 which is for the 6k axles like you have. The equalizers you have now are Equa Flex Cushioned equalizers so for a replacement set...
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  • How to Determine Which Dexter E-Z Flex Equalizer Kit is Correct for a Trailer
  • To determine which Dexter E-Z Flex suspension system you need for your trailer you will simply need to choose whether your trailer has tandem or triple axles, as well as the length of your current equalizers. For a tandem axle trailer we have part # K71-652-00 which is 5-5/8" long, and part # K71-653-00 which is 7-3/4" long. For a triple axle trailer we have part # K71-656-00 which is 5-5/8" long, and part # K71-657-00 which is 7-3/4" long. I have attached some installation and...
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  • What is Advantage of Never Fail Tandem Axle Suspension Upgrade Hardware Kit Over Other Options
  • The Never Fail upgrade kits like the # LC281285 have two really distinct advantages. One of them is what you mentioned and is that they don't require greasing or any maintenance. The other is that they last about twice as long as any other heavy duty style of bushing kit. You'll get easily twice the mileage from this kit over anything else.
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  • Adding Electric Brakes to Northern Tool UltraTow 5x8 Aluminum Frame Trailer
  • Because the trailer doesn't have a traditional size, in order to upgrade to trailer brakes you will need to have a welder install the Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34 which will require the proper jig to ensure placement and alignment. Then you will need to measure your spindles to help get the correct replacement hubs to add the integrated drum. I've attached a photo of the locations to measure with a digital caliper like # PTW80157 to assist in getting...
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  • Equalizer Kit Replacement Recommendation for Equalizers that are 7-1/2 inches Long
  • Since your equalizers are longer than what we have kits for you'll need to piece the kit together you'd need to replace the equalizers, bolts, shackles, and nuts. For the equalizer you'd need to start with the part # TREQE1, then for bolts I'd recommend the wet bolts part # 126B2, for shackles you'd want the part # 115052 which are 2-5/8 inches long.
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  • Switching from Standard Equalizer to Cushioned 7-1/2" Equalizer
  • I have a solution for you, but I can't say that using longer shackles with a shorter equalizer is going to be the best solution since it may change the frame clearance from your trailer. Instead of going with the Road Armor 6" Equalizers # LC696740 and longer straps, you can get the same cushioned equalizer that fits your current setup using the Lippert Equa-Flex Cushioned Equalizers # # LC279688 which are 7-1/2" long and will match what you're currently using. The Equa-Flex is designed...
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  • How To Use the Roadmaster Comfort Ride Kit On a Trailer with 1-3/4 Inch Wide Double Eye Springs
  • If you will be installing the Roadmaster Comfort Ride Leaf Spring Suspension Kit part # RM-2460-2570 on a trailer with 1-3/4" wide double eye leaf springs then you will need to replace the front and rear leaf spring hangers with ones for a 2" wide leaf spring, the Hanger for 2" Wide Slipper Springs part # 721584 should work for you but I have attached a list of other options as well that vary by height. The Roadmaster Comfort Ride Leaf Spring Suspension Kit is not offered with 1-3/4"...
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  • 26 Inch Leaf Springs for Axles Rated at 5,200 lbs
  • We do have a solution for you although we don't carry a leaf spring for a 5,200 lb axle that has the same dimensions as Leaf Spring # SP-051275. What does have the same dimensions is the 26" Double-Eye Spring for 6,000-lb Trailer Axles # SP-053275 which will work for you despite being rated for more than your axle's capacity; they are rated close enough to your 5,200 lb axles that you won't have to worry about the springs causing a stiff ride.
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  • Timbren 3.5K Axle-Less System with 4 Inch Lift and Offroad Tires and Matching Hubs and Brakes
  • Considering the size tires you are wanting to put on the trailer you would need to go with at least a 3,500 pound Timbren Axle-Less system such as # ASR35HDS02. The hub and drum assembly for this system is # 8-201-9UC3-EZ. For the brake assemblies use set # AKEBRK-7-SA. These are self-adjusting brakes, one left and one right. You will likely not be able to match up the bolt pattern between the trailer wheels and the Toyota wheels. Vehicle wheels also often have an offset whereas...
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  • Jeep Wheel Compatibility with Timbren Axle-Less Trailer Suspension System
  • Jeep wheels have the 5 on 5 inch bolt pattern and we do have hubs that fit the Axle-Less Systems and your Jeep wheels. It is recommended to use trailer wheels with trailer hubs because of the zero offset and tire design, but people have been using Jeep wheels especially for off-road trailers for years so we know they can work. We only have a couple compatibles option for that size hub. You will want the Timbren Axle-Less Trailer Suspension System - 4" Lift Spindle w/Flange - Off-Road...
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  • Comparing Bronze and Nylon Bushings for Trailer Suspension
  • It really just depends on what you are looking to get out of the bushings. Bronze bushings, like part # K71-291-00, will last longer but are more noisy and it is recommended to use wet bolts like part # 126B2 to keep them lubricated. Nylon bushings, like part # SP05-060, are much quieter and can be used with regular bolts like part # 166081 since they don't need to be lubricated as much. As far as lifespan goes the bronze will last longer but not so much longer that they are much better...
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  • Recommended Shackle Bolt for 2,000 lb Utility Trailer Leaf Spring Suspension System
  • The Zinc Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # TRFA73Z916DLNZ is a grade 5 bolt. Your setup as described is a standard setup for leaf spring hangers and double eye leaf springs. The # 166081 is made by the same manufacturer and is used more commonly than zinc plated for most factory applications. The cost difference comes down to supply and demand. The Dexter bolt # 007-003-01 is simply a different manufacturer that has a big name in the trailer axle market. ...
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  • Replacement Equalizers for EZ-Flex Suspension
  • Thank you for the photo; due to the damage of the equalizer on your E-Z Flex Suspension System # K71-652-00 what you need to do is replace that equalizer. If just one is damaged you can replace it with a single Replacement 5-5/8" Equalizer for E-Z Flex # 013-143-03 although if the other side is showing wear I recommend replacing both, which is part # K71-654-00. I also recommend making sure you grease the equalizers every 3 months or 3,000 miles with red grease such as # L11390...
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  • Could Timbren Axle Less Kit Be Installed on Truck Bed Trailer Frame
  • The Timbren Silent Ride # TSR7KS02 that you referenced was intended for attaching to a trailer frame, but could also attach to a truck frame too assuming it's a standard boxed frame. I attached a picture that shows how it typically bolts to a frame and shows relevant dimensions that you should check out and compare. You really don't want to install suspension enhancement like the # TSS-107-40 you referenced on suspension that is showing signs or being worn out like yours. These kits...
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  • Replacement Components To Upgrade Harbor Freight Folding Trailer
  • The Dexter Trailer Idler Axle w/ Idler Hubs - EZ-Lube - 4 on 4 Bolt Pattern - 60" Long - 2,200 lbs # 20440I-EZ-60 will be a great upgrade from the axle that comes on Harbor Freight trailers. The 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 20-3/8inch Long # SP-169275 and hanger kit # APS2 will work well as will the u-bolts # CE23000. The Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range C # AM30630 is rated for 990 lbs each max capacity, so you...
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  • Dexter EZ Flex Equalizers for 6,000 Pound Axles on a 2006 Heartland Bighorn 5th Wheel
  • The length is good on the EZ Flex system # K71-653-00 but the height may be different depending on where you are measuring that 4-3/4 inches. On the EZ Flex the distance from the center of the mounting hole to the center line between the 2 bottom holes, straight up and down, is 2-7/8 inches. If your 4-3/4 inch measurement is diagonal then you will be good to go with this kit. For a u-bolt kit you can use # APUBR-9. The shocks might actually feel more effective with the EZ Flex kit...
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  • Are Double Eye Leaf Springs Rated For 8,000 lb Axles
  • Thank you for that detailed information and what I can tell you is that when choosing leaf springs, the actual number of leafs isn't the most important thing, the weight rating and center-eye to center-eye measurement is what you need to know. I have added a cut out from the help article on double eye trailer suspension which I highly recommend reading. We do not carry double eye springs rated for 8,000 lb axles and there is no way for us to know the rating of your currently installed...
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  • Replacement Leaf Spring Bolts and Bushings for Dexter 10K Axle On Big Tex Trailer
  • The correct replacement leaf spring bushings for any given trailer will be dependent on the width and type of the leaf springs. The most common for a Dexter 10,000 lb Trailer Axle are 3" wide slipper springs. If you have 3" wide slipper springs then you can use part # 14-69. Then for eye bolts you can use part # 7-136-2-6-112 or part # 7-169-6-112 if you have 3" wide slipper springs. That said, it is always best to measure your leaf springs bushings and eye bolts in order to determine...
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  • How to Determine Correct Replacement Springs for a 2019 Keystone Fuzion 424 Toy Hauler with 7K Axles
  • I was able to find that your 2019 Keystone Fuzion 424 Toy Hauler has 7K axles and while we do have leaf springs for 7K axles, you'll need to take some measurements of your leaf springs to ensure that you get leaf springs that are the correct length for your application. Height can be a factor as well unless you are swapping out all of your leaf springs on all of your axles. If you are referring to suspension enhancement we have that too. Unfortunately we don't have a way to look up exactly...
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  • Installation Bolts for Equa-Flex Cushioned Equalizers
  • You will need at least 10 bolts for the Equa-Flex Cushioned Equalizers # LC279687, and those bolts are the Zinc Shackle Bolt with Locknut for Double-Eye Springs # TRFA73Z916DLNZ. The reason I say "at least" 10 is because you would need additional bolts if you wanted to replace the bolts that attach your leaf springs to your hangers. What I recommend is getting all of the necessary bolts, shackle straps and nuts with one kit that is designed to work with the Equa-Flex, the Lippert Components...
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  • Correct Bushing and Bolt for 4-Leaf Slipper Spring # SP-264275
  • The 4-Leaf Slipper Spring # SP-264275 that you referenced actually comes included with the nylon bushing but if a replacement is needed then the 9/16 inch # TRBU11561 that you mentioned would be the correct size and will work perfectly. The correct bolt for this setup is the Redline Spring-Eye Bolt # 166079 that features a 9/16 inch diameter and 3-1/2 inch length.
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  • Recommended Roadmaster Comfort Ride Shock Absorbers for 8,000 lb Axles
  • You will want the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle # RM-2470. This kit is specifically designed for that tandem axles of that capacity. If you want the entire upgrade kit then use the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K, 3-1/2" Axles # RM-2470-2580 is what you'd need. This has the shocks as well as the custom leaf spring system to reduce bounce, chucking, and porpoising of the trailer while increasing...
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  • Recommended Equalizer Kit for Tandem Axle Trailer with 13-104-02 Equalizers
  • The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs # AP233 is the standard suspension kit. For a heavy duty option, we have the Dexter Axle Heavy-Duty Suspension Kit for Tandem Axle Trailers - 1-3/4" Double Eye Springs # K71-359-00. We also have the E-Z Flex Heavy Duty Rubber Suspension System by Dexter Axle - 5-5/8" Equalizers # K71-652-00. This kit has the shock absorbing equalizer for a smoother ride and grease zerks for easy maintenance.
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  • Dexter Heavy Duty Greasable Shackle Kit Needed
  • It sounds like the Replacement Shackle Link with Bolts # 018-026-05 that you referenced is what you are needing. It comes with the shackle and wet bolts that have a grease zerk fitting installed on them. This kit is compatible with the following heavy duty Dexter Axle suspension kits: Kit - # K71-359-00 Kit - # K71-360-00 Kit - K71-448-00 Kit - # K71-449-00 Kit - K71-453-00
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  • Recommended Slipper Spring for Custom Kayak Trailer
  • Thanks for the photos with measurements. The 2-Leaf Slipper Spring w/ Radius End for 1,000-lb Trailer Axles - 24-5/8" Long # SP-177275 are rated for 500lbs each for use with a 1000K axle. This will work with the inside to inside measurement you are seeking. You will simply need the 9/16 inch bolt # 166079. If there is any extra space in the hanger it won't be an issue with the bolt and bushing.
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  • Road Armor Shock Absorbing Equalizer Kit Compatibility with Never Fail Bushing Suspension Upgrade
  • The Road Armor Shock Absorbing Equalizer Kit - Tandem Axle - Qty 2 # LC696740 are absolutely compatible with the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285. You will simply remove the bronze bushings that come with the Road Armor Equalizer and install the Never Fail Bushing in its place. You will do this for all three bushings that come preinstalled in the equalizer.
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  • Trailer Axle Over-Under Kit to Raise Height of Trailer
  • You can increase trailer height by welding on taller spring hangers but there is also another way to lift a trailer without having to cut off the old hangers and weld on all new ones, an axle over-under kit. Kit # K71-384-00 for 2-3/8-inch diameter axles and kit # K71-385-00 for 3-inch axles are bolt on kits that place your leaf springs above the axles, as shown in the linked photo. The amount of lift you get will be the sum of the axle diameter plus the height of the spring stack. So,...
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  • Recommended 7,000 lb Axle with Brakes for M105 Military Trailer
  • To replace the axles on your M105 Trailer, you will need to know what dimension is the better fit. We have 7,000 lbs axle with electric brakes and drum assemblies that are 95 inches from hub face to hub face with 80 inch on center spring seats or 94 inch with 79 inch centers. We also have straight no drop or 4 inch drop axles. Here are your options: Dexter Trailer Axle w/ Electric Brakes - E-Z Lube - 8 on 6-1/2 Bolt Pattern - 95" # 8327834-EB Dexter Trailer Axle w/ Electric Brakes...
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  • Difference Between Dexter Axle Heavy Duty Suspension Kits # K71-449-00 and # K71-359-00
  • The difference is the length of the equalizers that come with the kit. The part # K71-449-00 comes with equalizers that are 7-3/4 inches from eye to eye whereas the part # K71-359-00 has equalizers that are 2 inches shorter at 5-3/4 inches.
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  • Replacement Leaf Spring with Single Leaf Compared to Multi-Leaf Spring
  • The 1-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long # SP-115275 will have the same capacity strength as a multi-leaf spring. It will replace a spring of the same length with the 3,000 lb capacity so it will work for a 6,000 lb axle. The benefit of not having the multi-leaf springs is the thickness is different in that this leaf spring will only have a 7/8 inch thickness making it fit well with the U-bolt around your axle. This spring will work just as well as the...
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  • What Type Of Bolts Are Used with Equalizers and What Is the Torque Needed for Them
  • Yes, you will use knurled shoulder bolts to attach the equalizers and leafs springs. If you are interested in the Curved Equalizer for 1-3/4" Wide Double-Eye Springs part # TREQE1 then you will be better off going with the Tandem-Axle Trailer Hanger Kit for Double Eye Springs part # APT5 as this comes with all the shackle straps, knurled shoulder bolts, and nuts you need as well. If you were to try and piece these together with the above equalizers you would end up paying more. The leaf...
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  • How to Order Dexter 6k Axle with Brakes 7461121 with Self Adjusting Brakes
  • The brakes that come with the Dexter Axle part # 7461121-EB are manual adjust brakes part numbers # 23-106 and # 23-105. To order a similar setup with self-adjusting brakes is possible but you will need to piece the kit together as we don't have it all as one part number. You'd need the following: # 7461121 # 8-201-9UC3-EZ quantity 2 # 23-458-459 # 7-5
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  • Spring Hanger and Axle Diameter Measurements for Installing Leaf Springs on Single Axle Trailer
  • In the attached diagram the A measurement is actually the distance from the center of the spring hangers for a single axle trailer. The spring eye to spring eye measurement for your leaf springs will be slightly different. The B measurement that you see is simply the distance between the center of the axle and trailer frame. I have attached another diagram from the Single-Axle Trailer Hanger Kit for Double-Eye Springs # APS3 product page to help demonstrate this. If you have an axle...
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  • Hub, Leaf Spring, and U-Bolt Kit for 2,000 lb Trailer Axle
  • The Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15 is designed to fit 2,000 lb trailer axles. If that's what you have then this will fit and the U-bolt kit part # APUBR-10 that you referenced would also work since that's what it's designed to fit. The leaf spring part # SP-169275 is also a 2k axle spring but you'll want to make sure the length matches what you need too. This has an overall lenght of 20-3/8 inch.
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  • Can the Lippert Trailer Shock Kit be Used with the Dexter Over-Under Conversion Kit?
  • The Lippert Components Bolt-On Shock Kit w/ Heavy Duty Gas Shocks - 3,500-lb (2-3/8") Axle # LC281255 is compatible with the Dexter Trailer Springs Over-Under Conversion Kit # K71-384-00. This over-under kit If you have 3 inch axles ( lbs) then you will use # K71-385-00 and # LC281281. The over-under kit will give you the spring seat locations needed but will give you parts that the Lippert shock kit will duplicate. If you want to weld on spring seats, you can use # TRSS300 or...
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  • How To Confirm Fit of Road Armor Equalizers and Never Fail Bushings on a 2020 Jayco White Hawk
  • In order to confirm fit of the Road Armor Shock Absorbing Equalizer Kit part # LC696740 and the Never Fail Tandem Axle Suspension Upgrade Hardware Kit part # LC281285 on a 2020 Jayco White Hawk 27RB you'll need to measure your existing equalizers and be sure they match the above or close. The Road Armor Shock Absorbing Equalizer Kit measures 6" between the two bolt holes on center. The Never Fail Tandem Axle Suspension Upgrade Hardware Kit works with any trailer with 1-3/4" wide double...
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  • Replacement Triple Axle Hanger Kit for 2015 Kaufman Car Hauler with 7k Axles
  • What you have is a slipper spring setup on your 2015 Kaufman car trailer. So what you need for a triple axle hanger kit then is the part # APTT6SE which comes with everything needed. If you need new leaf springs too you'd want the 7k rated part # SP-232275 for each one.
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  • Cushioned Equalizer Recommendation to Replace Equalizer thats 6 inches Long
  • I have a great equalizer solution that is cushioned that will fit as a replacement for your 6 inch long equalizers but not from Lippert. Instead you'll want the EZ Flex Equalizer part # K71-652-00 which has a width range of 5-1/4 inch to 6-1/4 inch so it would work great with your 6 inch long equalizers. The width range is really the most important factor and since that checks out with this kit it would fit and work well.
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  • Recommended Axle-Less Trailer Suspension for 5K Capacity with Brakes
  • We do not have a kit for what you are seeking but I do have the parts to help. You will start with the Timbren Axle-Less Trailer Suspension System - 4" Drop Spindle w/ Brake Flange - 5,200 lbs # ASR5200S04. This will allow you to use the Trailer Hub and Drum Assembly - 5.2K and 6K E-Z Lube Axles - 12" - 6 on 5-1/2 - Pre-Greased # AKHD-655-6-EZ-K along with the Electric Trailer Brake Kit - Self-Adjusting - 12" - Left and Right Hand Assemblies - 5.2K to 7K # AKEBRK-7-SA. This gives you...
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  • Distance Between Hangers with 26 Inch Leaf Springs
  • We don't carry the MR4 leaf springs but based on my research they look like they are 26 inch double-eye springs like part # SP-053275. For springs of this length and the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs # APT4 the hangers are going to be spaced 30-1/4 inches apart. I have added a link to a video review of the hanger kit as well as a couple help articles on trailer suspension which I recommend checking out.
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  • Determining Hanger Spacing for Replacement Leaf Springs on Trailer
  • The closest leaf spring set we have available to the 22-1/4 inch length you mentioned is the 3-Leaf Double-Eye Spring # SP-113275. This double-eye leaf spring features a length of 23-1/2 inches from the center of the spring eye to the center of the other spring eye. I recommend making sure you are measuring your existing leaf spring from the center of one eye to the center of the other. This particular set is designed for 2,000 pound axles, so you will want to also make sure any new springs...
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