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Expert Answers about Trailer Leaf Spring Suspension


  • Recommended Shock Absorption for Keystone Montana 5th Wheel with Tandem Axles
  • Trailer suspension uses different components for the air systems than the frame mounted suspension you are looking at. For your tandem axle Keystone Montana, I recommend the Lippert Components Trailair by Center Point Air-Ride Suspension Upgrade - Tandem Axle # LC1565391 which will give you adjustable air pressure in the form of an equalizer for your leaf springs. If you want a trailer with air suspension, this is the way to go with adjustable air springs that can use manual valves or...
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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 Equalizer Shocks For Triple Axle 4200 Cyclone Toy Hauler
  • For your triple axle on your 4200 Cyclone toy hauler, I recommend the E-Z Flex Triple Axle Suspension Kit with 7-3/4" Equalizers # K71-657-00. This system includes the wet bolts, metal bushings, and shackle straps. This system is also available with 5-5/8 inch equalizers # K71-656-00. Another great option to consider is the Equa-Flex Cushioned Equalizers w/ Bronze Bushings - Double Eye Springs - Triple Axle - 5K to 8K # LC279689. These are very similar with the metal bushings, but...
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  • Replacement Trailer Axle with 95 Inch Hub Face and 80 Inch Spring Center Measurement
  • I have exactly what you need for a replacement trailer axle with 95" hub face to hub face and 80" spring center to spring center measurement. For this we have the following options based on weight capacity. 3,500 Lbs: part # 7359765 5,300 Lbs: part # 6340624 6,000 Lbs: part # 7461121 7,000 Lbs: part # 8327834 The above options all have the built-in E-Z Lube technology which allows you to easily grease your trailer hubs without having to remove any parts beside the plug for the...
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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Recommended Timbren Silent Ride Tandem Axle Trailer Suspension Setup
  • 7,000 lb axles are not typically 4 inches in diameter and we don't have a system compatible with that size. If you want to upgrade from your 3,500 lb axles to larger capacity axles, you can use the Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 14,000 lbs # TSR14KT01 but you will want to make sure your other trailer components can handle that additional capacity. You will be limited by the weakest component of your entire system. If you just want to keep...
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  • Recommended Lippert Trailair by Center Point Air Ride Trailer Suspension for Jayco Pinnacle 36fbts
  • The Lippert Components Trailair by Center Point Air-Ride Suspension Upgrade - Tandem Axle # LC1565391 will give you the smoothest ride of any of our comparable suspension systems. It will give you an extra 2 inches of trailer rise, so your trailer would most likely not have any tire rub if you were to upgrade. Your current system is more comparable to the Dexter E-Z Flex # K71-652-00 or Lippert Equa-Flex which both use rubber springs to cushion the ride. These are all really good...
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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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  • Required Clearance between Tire and Frame to Install Lippert Bolt-On Shock Mount Kit to Fifth Wheel
  • For the Lippert Bolt-On Shock Mount Kit for 3" Axle Tubes referenced in your question, part # LC281281, the minimum clearance needed from the inside of the tire to the I-beam flange on your trailer's frame (which is needed to install the upper mounting bracket) is 4 inches. This kit will work great for your 2008 Cougar Fifth Wheel as long as it has the required clearance and has 3 inch axles. You will want to install them on each axle. For 2-3/8 inch axle tubes, you can use # LC281255. I...
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  • Measuring For Compatibility Of Dexter E-Z Flex Triple Suspension Kit
  • For the Dexter E-Flex suspension, you need to measure the metal equalizer that you will find in the hanger between axles. The spread between that equalizer's furthest holes center to center is the measurement that will tell you if you need the E-Z Flex Triple Suspension System Kit with 5-5/8" Equalizers # K71-656-00 or the 7-3/4 inch equalizer system # K71-657-00. For the # K71-656-00, you need axles that are 33 inches apart on center and the equalizer measurement needs to be between...
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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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  • Replacement Leaf Spring Recommendation for a 3,500 lb Dexter Axle
  • From the info I was able to find on the number you listed you do have a Dexter 3,500 lb axle so for a leaf spring you would want the # SP-212275 for if you need a 25-1/8 inch spring or # SP-210275 if you need a 27 inch leaf spring.
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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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  • 3,500 lb Timbren Setup Recommendation for Off-Road Wheels and Tires
  • For a wheel and tire that big your best option would be the Timbren kit part # ASR35HDS02 which is set up for wider tires and also has a 4 inch lift built into it. This is the same 3,500 lb capacity though. That being said we can only safely recommend using trailer rated wheels and tires wit this kit. For just a hub without a drum you would want the part # AKIHUB-655-6-K.
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  • Replacement Trailer Suspension Components For Tandem Trailer
  • We do not have any equalizers with the dimensions you mentioned. From the looks of the photo you sent it appears the hole may be elongated and you may be able to use an equalizer that has all of the holes at 9/16-inch like part # TREQ356, or with a center hole that measures 3/4 inch like part # TREQ458. You will need to measure the equalizer length and height as well as the holes like the attached drawing shows to find the correct replacement. It looks like the shackles and...
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  • Will the Timbren Silent Ride Suspension System Work with I-Beam Trailer Frames
  • The Timbren Silent Ride Suspension System will not bolt directly onto an i-beam trailer frame. However, as you mentioned, you can absolutely weld a solid plate to the inside of the i-beam frame where the frame brackets sit which will allow the system to work for you. I called Timbren and was able to confirm this. I highly recommend you have a quality and experienced welder perform this task. If you have 2-3/8" diameter trailer axles then you will want to use part # TSR7000T04 but if you...
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  • Replacement Slipper Springs to Replace 32 Inch Long Springs
  • The 30 inch slipper springs we carry don't have a measured radius but the 28 inches you're looking for will work just fine. Your 32 inch springs were likely a little shorter than that originally and have flattened over time. Although probably not the full 2 inch difference but enough that our 30 inch springs will work on your trailer. We carry three different weight capacities that are 30 inches: 4-Leaf for 3,700 pound axles # SP-040275 3-Leaf for 2,900 pound axles # SP-039275 2-Leaf...
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  • Bushings, Shackle Straps, and Wet Bolts for Tandem Axle Trailer
  • The bronze bushings with 9/16 inner diameter come as a single, # D014-077-00, or in a pack of four, # K71-291-00. The closest shackle strap we have to that length is 3-1/8 inches. I've linked our selection for you. We do carry a heavy-duty strap that's 3-3/4 inches long, part # 018-026-05. We have wet bolts that are 3 inch, # 126B2, but the 3-1/2 inch long bolt that will fit the 9/16 inch bushing is not a wet bolt, # 166079. All of the prices can be seen on the linked product pages.
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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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  • Available Lippert 5th Wheel Trailer Shock Absorber Kits
  • We offer two heavy-duty trailer oil shock kits from Lippert, who makes most of the RV frames in use. Those kits are designed for either 3-inch axle tubes, part # LC281281, or for 2-3/8-inch axle tubes, part # LC281255. Both kits include mounting brackets. The shocks in both kits measure 13-1/2-inches long when extended.
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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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  • 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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  • 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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  • Replacement 26 Inch Leaf Springs, Shackle Straps, And U-Bolts
  • To give you the correct leaf springs, I would need to know the capacity of your axle or what your Gross Vehicle Weight Rating (GVWR) is not just the weight of the trailer itself. This is the loaded capacity of the trailer. We have a few options for 26 inch leaf springs: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long # SP-051275 4-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 26" Long # SP-124275 6-Leaf Double-Eye Spring for 4,500-lb Trailer Axles - 26" Long...
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  • Recommended Tandem Axle Hanger Kit For Double Eye Springs
  • If you use the 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long # SP-111275 which have the same capacity, I recommend the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 3-1/4" Front/Rear/Center # APT5 for a tandem axle application. When you follow the attached photo, this will give you the 33-1/2 inch axle spread. For your 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 26" Long # SP-053275, you can use the same system but replace the equalizers with...
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  • Differences Between Triple Axle Hanger Kits APTT1, APTT3, and APTT5
  • The differences are the dimensions of the hangers and equalizers of the three kits. The # APTT1 uses totally straight equalizers and taller center hangers. The # APTT3 uses more traditional sized equalizers and center and outside hangers that differ in size slightly. The part # APTT5 uses a standard sized equalizer and hangers that are all the same height. The part # APTT3 is the one that is the most commonly used. It would be my recommendation for your trailer.
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  • Tandem Axle 2 Inch Slipper Spring Suspension Kit with 13-1/8 Inch Long Equalizers
  • You will actually just need kit # APT6SE-36 which is the same thing only the equalizers in it are 13-1/8 inches long. The hardware with each is specific to the kits so some of the other parts are different but for 2 inch slipper springs and 13-1/8 inch equalizers kit # APT6SE-36 is the one for you.
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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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  • Timbren Axle-Less Suspension System Compatibility with Aluminum I-Beam Trailer Frame
  • The Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 is compatible with I-beam frames and in tandem axle configuration. Due to the Aluminum frame, I recommend putting a thin rubber pad between the steel mount and the aluminum I-beam. The powder coat on the steel should keep the two dissimilar metals from galvanic corrosion, but a thin rubber pad would drastically increase this safety. Zinc plated hardware will work well with...
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  • Replacement Trailer Leaf Springs for 5200-lb Axle
  • When a trailer leaf spring is well worn it can become elongated. Springs can flatten out and become as much as a 3/4-inch longer, measured eye to eye, than when they were brand new. So the correct replacement spring for your suspension might measure shorter than the worn spring you removed. That said, we do have several 26-inch leaf spring for various axle ratings from 2000- to 6000-lbs. The linked page displays all leaf springs and the filters on the page will let you select the axle...
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  • Replacement Suspension for Tandem Axle Trailer with 3500 Pound Axles and 24 Inch Double-Eye Springs
  • For 3500 pound axles with 24 inch springs the # SP-216275 is what you need. Springs stretch as they wear out so it's very normal for your measurement to be longer than the new springs. Also, the Tandem Axle Equalizer Kit # AP233 is also great for you. The 1/4 inch extra length isn't going to be a factor and we don't carry 5-1/2 inch equalizers that are 2 inches tall.
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  • 25-1/4 inch Long Trailer Leaf Spring Recommendation for 4,000 lb Axle
  • I attached a page that has all of the double eye springs we carry that are 25-1/4 inches long from eye to eye. For a spring with the same capacity as the one that you referenced the part # SP-220275 would be what you need.
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  • Can I Replace 4 Leaf Springs With 5 Leaf Springs For The Axle On My Trailer
  • Yes, you can replace your 4 Leaf Springs like part # SP-221275 with 5 Leaf Springs like part # SP-111275 as long as you replace all of the springs at the same time. There really isn't any advantage if you want to go with 5 leaf springs over 4 leaf springs. Typically, you always want to try to get the same parts to replace what you already have, but 1/8 of an inch difference per leaf spring won't make much of a difference in how everything fits together. The 5 leaf springs will work just...
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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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  • Never Fail Bushings and Bolts for a Trailer with Equa Flex Cushioned Equalizers
  • The Never Fail bushings come in a variety of quantities. We have an 8 pack, # LC279684, a 14 pack # LC279685, a 22 pack # LC279686, and a single # LC281625. I didn't know if you wanted to have some extras for spares or not so I listed all the options. Please note Never Fail bushings should be used with standard suspension bolts only. Do not use wet bolts with these bushings as the grease can cause the bushings to degrade. If you wanted to use wet bolts at places that don't use the Never...
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  • Why is Center Hanger Longer for Tandem Axle Trailer Hanger Kit
  • The center hangers in the Tandem-Axle Trailer Hanger Kit # APT8 that you recently purchased are indeed longer. This is actually pretty common for tandem axle trailers. The reason for the extra length on the middle hanger is related to the shackle straps of the equalizer. You want this hanger to be a bit longer to compensate for how the shackle straps move the spring higher up. I have attached an image to better clarify this. It is possible for the shackle to flip like you described,...
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  • Recommended Double-Eye Suspension System for 2,000 lb Single Axle Boat Trailer
  • For your single axle boat trailer, I recommend the Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear # APS2 along with the 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 23-1/2" Long # SP-113275. I've attached a photo with spring measurements to assist as well as an article on suspension.
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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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  • Heavy Duty Equalizer Kit and Trailer Brake Assemblies for Dexter 3,500 lb Axles
  • Since you said your equalizers are the same dimensions as the 013-122-04 (2.88" tall x 7.67" centers) then the correct kit you need is the part # K71-449-00 as that's what this comes with. This gives you new equalizers and shackles. For a set of left and right Dexter 3,500 lb brake assemblies you'd then want the part # 23-468-469. These are self adjusting as well.
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  • Replacement Axle with Hubs & Brakes for Wells Cargo Tandem-Axle Enclosed Trailer FT85162
  • The Wells Cargo website indicates that their enclosed tandem-axle trailer model FT85162 has a GVWR of 7000-lbs so it has two 3500-lb axles. The specs did not indicate axle length. We have several 3500-lb axle kits with hubs and brakes that are shown on the linked page. All have 5-on-4-1/2 hubs and electric drum brakes. Two lengths are offered, the 89-inch size like # 35545E-ST-89 and the 95-inch length such as # 7359765-EB. These measurements are from hub face to hub face. Please...
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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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  • Can Roadmaster Comfort Ride Shocks and Lippert Equa-Flex Fit on Freedom Express 246RKS
  • There would be a significant upgrade in the ride of your trailer if you were to install both the Roadmaster Comfort Ride Shock Absorbers # RM-2460 and the Equa-Flex Cushioned Equalizers # LC314336. If you had to choose between the two though I recommend going with the Comfort Ride Shock Absorbers as they will have the most impact on how your trailer handles. When it comes to replacing your leaf springs you want to stick with leaf springs that are rated for the weight of your axle. If...
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  • Correct Leaf Spring for Trailer with Lippert 3,500 lb Axle
  • Thank you for the photo! I was able to use the serial number on your axle to determine which is the correct replacement leaf spring for your trailer. For this, you are going to want to use the 3-Leaf Double-Eye Spring part # SP-220275 which is a double eye leaf spring that is 1-3/4" wide, has a 4,000 lb total weight capacity, and a 25-1/4" eye to eye measurement. The measurement you provided of 26" long is correct but the leaf spring needs to be measured while unloaded as it will lengthen...
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  • Replacement Leaf Springs to use With Lippert Center Point Air Ride Suspension System
  • In order to determine the correct replacement leaf springs to work with your Center Point Air-Ride Suspension System # LC1565391, you'll need to know your axle's weight capacity as well as the length from the center of spring eye to center of spring eye in your former leaf springs. There will likely be some slight elongation in your old springs, which you should take into account when choosing replacements. The springs you mentioned, for 7,000 lbs axles, have a length from center of...
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  • Length of Shocks on Lippert Bolt-On Shock Mount Kit
  • I'm not exactly sure what you are asking; if it is about how to mount the Lippert shocks, the figure you referenced is simply a part of those directions. If you would like to clarify please let me know so I can get a better idea of what you are trying to accomplish.
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  • Replacement Parts For A Dexter 3,500 Lbs Axle Part # 35545E-ST-EZ-89
  • According to the manufacturer, the Homestead Challenger Trailers are equipped from the factory with 3,500 lb axles with electric brakes. For these axles you will need the following: 2 Dexter Electric Trailer Brake Kit part # 23-26-27 (Manual-Adjust) Or 2 Electric Trailer Brake Kit part # AKEBRK-35-SA (Self-Adjusting) And 4 Bearing Kits for #84 Spindles part # BK2-100 I have attached a few articles for your consideration in addition to a review of the products I have recommended.
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  • Recommended Trailer Suspension Upgrade On 2016 StarCraft 24 RLS
  • For a suspension upgrade on your 1216 StarCraft 24 RLS, I recommend the Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 2-1/2" Round Axles - 7,000 lbs # TSR7000T06. This system replaces leaf spring suspension to provide a stable ride distributing weight evenly between both axles. Rubber springs absorb road shock. This installation requires a 2 inch by 4 inch hollow steel crossmember with 3/16 inch thickness that is not included. If you have 3 inch axles, you will want #...
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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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  • Hanger Spacing for 3500 LB. Tandem Axle Trailer
  • Thank you for purchasing from etrailer! You did a great job selecting compatible parts. When using Leaf Springs # SP-198275 with the # AP233 Equalizer Kit and the # H248 Hanger Kit, there should be 29-1/2" between the front and center hangers and 29-1/2" between the center and rear hangers. This should achieve a 4-1/2" clearance between the center of the axle and the trailer frame if you have a 3500 lb axle. I've Provided a diagram that should be helpful. I've also provided a link to our...
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  • Recommended Cushioned Equalizers to Replace Dexter 13-10 Equalizers
  • The 13-10 equalizer is equivalent to the Triangular Equalizer for 1-3/4" Double-Eye Springs - 6-1/16" Long - 9/16" Center Hole # TREQ310. If you go with the Dexter E-Z Flex Heavy Duty Rubber Suspension System by Dexter Axle - 5-5/8" Equalizers # K71-652-00 they will work very well but will lower your trailer by about 1 inch. The Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 3K to 6K # LC279687 will also work and will do the same.
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  • Can E-Z Flex Rubber Suspension System Work w/ Wide Trax Trailer Suspension
  • I have a possible solution for you, but unfortunately the E-Z Flex Heavy Duty Rubber Suspension System such as the 5-5/8" Equalizers # K71-652-00, will not work with the Wide Trax suspension on your trailer. The axles on a Wide Trax system are spaced further apart and the required equalizer components are significantly larger than the E-Z Flex Systems. A much larger equalizer like the 14-5/8" Equa-Flex Cushioned Equalizers, part # LC314336 may be the correct length. You will want to...
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  • Recommended Bushings and Bolts for Trailer Suspension Upgrade
  • The Bronze Bushings # K71-291-00 will work well with the wet bolts # 34007-187-00 which are 3-5/8 inches long. The usable length is 2-1/4 inches which will work well with the bronze bushings that are 1.74 inches long. As you stated, wet bolts can vary in length and should not be used with the nylon bushings # TRBU11566 as they cause them to break down prematurely. If you are simply wanting a bushing kit that requires no maintenance and will last, I recommend the Never Fail Tandem...
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  • How to Raise the Height of a 5th Wheel Trailer Without Flipping the Axles
  • To gain height without flipping your axles I recommend doing 2 things: replacing your leaf springs with ones that have more leafs and changing out your hangers for taller ones. You can probably get away with just swapping out your hangers but unless you only have something like 2 or 3 leaf springs and you want to gain height you would have to go with at least 4 or 5 leafs to gain enough height. When replacing leaf springs be sure to choose new ones that have a weight rating that matches...
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  • Selecting Replacement Leaf Springs for Enclosed Trailer
  • Leaf springs stretch with use and age and to make sure you match their length, as well as their capacity, you will want to pull one out of the trailer's suspension so you can measure its eye-to-eye length. A well-used spring can stretch as much as 1/2-inch from its original length. If your hanger hole spacing is 25-inches on center then you may well need a 25-1/4-inch like # SP-220275 but the length of your shackles comes into play too. The spring eye dimension should be longer than...
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  • Replacement Parts to Rebuild Trailer Suspension on 1976 EZTrail
  • All of the products you listed will work together just fine. Keep in mind, if your current springs are not 26 inch springs, like the # SP-124275 you referenced, your hangers, # APS4, will not be in the exact same position as your current ones. When repositioning everything the most important factor is keeping the axle in the same location it currently is. The U-Bolt Kit # APUBR-10 is correct for a 2,000 pound axle and the Shackle Bolt # 166081 will work too. It's hard to tell by the...
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  • Recommended Suspension Upgrade For Tandem Axle System On 2017 Coachmen Clipper 21FQ
  • For your suspension upgrade, I recommend the E-Z Flex Heavy Duty Rubber Suspension System by Dexter Axle - 5-5/8" Equalizers # K71-652-00 or the Equa-Flex Cushioned Equalizers - Double Eye Springs - Tandem Axle - 3K to 6K # LC279687. The Dexter system uses a rubber bushing to help absorb shock and the Lippert system uses a similar rubber core. The benefit of the Dexter system is you can see the bushing so you can tell when it is worn and needs replacing. The benefit of the Lippert system...
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  • Clearance Between Tire and Frame With Timbren Axle-Less System
  • As an example, tire and wheel combination # AC15R45SM uses a 5" wide wheel and 205/75-15 tire, which is 8.1" wide. If the Timbren Timbren Axle-Less Trailer Suspension System # A20RS545 has 4-7/8" of space between the frame and hub face, that would leave roughly 4/5 of an inch in space between the tire and frame, so your tires would not be rubbing against the frame if that's what you were using.
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  • Recommendation For Timbren Axle-Less Trailer Suspension W/Electric Brakes For 6 x 5.5 Bolt Pattern
  • Because you are wanting a 4 inch lift spindle with a 6 x 5-1/2 bolt pattern, I recommend the Timbren Axle-Less Trailer Suspension System- 4 inch Lift Spindle w/Flange - 2.2K Item # ASR1THDS03 . It will give you the suspension components integrated into the axle-less spindles. With this kit, I recommend the Electric Trailer Brake Kit - Self-Adjusting - 10 inch - Left and Right Hand Assemblies Item # AKEBRK-35-SA along with the Trailer Hub and Drum Assembly - E-Z Lube Axles - 10 inch...
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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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  • Recommended Air Suspension Kit for 13,000 lb Tandem Axle Food Trailer
  • To assist with the stability of the trailer, an air suspension system will give you the support you are seeking for off center loads as well as offering a smoother ride and support for off center loads. For this system, I recommend the Lippert Components Center Point by Trailair Air-Ride Suspension Upgrade - Tandem Axle # LC1565391. This system also raises your trailer about 2 inches to give you additional clearance. If you want suspension support but don't want the air system, you may...
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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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  • Compatibility of Axle U-Bolts for the RM-2460
  • The holes in the top plate of the Roadmaster Comfort Ride Shock Absorbers # RM-2460 are for 9/16 inch diameter u-bolts like # APUBR-9. The system will actually utilize your current u-bolts for mounting those plates. I reached out to my contact at Roadmaster and the bolt hole size on the 3" shock plate is slightly slotted so it is 0.6" x 0.75".
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  • U-Bolts for 1-3/4 Inch Square Axle
  • For a square axle that is 1.75" wide, you would want the Replacement U-Bolt with Nuts for 1-3/4" Wide, Square Trailer Axles # 175130 along with the U-Bolt Plate for 1-3/4" Square Trailer Axles with 1-3/4" Wide Springs # 116308. I have added links to video reviews of both products for you.
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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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  • Recommended Slipper Spring Suspension for 10,000 Pound Trailer
  • For Slipper Springs to install on your trailer that will have a maximum load of around 10,000 pounds, I recommend either the 5-Leaf Slipper Spring w/ Hook End for 6,000 pound Axles # SP-160275 or the 4-Leaf Slipper Spring for 5,000 Pound Axles # SP-231275, depending on the actual axle capacity for your trailer. Then for a hanger kit, which will work for either of the Slipper Springs mentioned above, I recommend the Tandem-Axle Trailer Hanger Kit for 2 Inch Slipper Springs # AP216-H202....
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  • Recommended Leaf Springs for 4,400 lb Axle Based on Axle Position and Hanger Locations
  • The typical springs for the AL-KO 4,400 axles are one of two lengths. If you have the 25-1/4 inch length, then you will want the 4-Leaf Double-Eye Spring for 5,000-lb Trailer Axles # SP-218275, but if you have the 26 inch springs, you will want the 6-Leaf Double-Eye Spring for 4,500-lb Trailer Axles # SP-256275. The width will be the same so you will want to determine the length based on the position of the axle using dimension A and D in the attached photos and the axle position based...
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  • Replacement Axle Needed for Lippert 5,200 lbs Axle with Serial Number 045-001684271
  • I do have a solution for you, however when I spoke with my contact at Lippert they said that your axle is rated for 5,200 lbs and the highest rated standard axles that we have are rated for 3,500 lbs. The alternative solution that we have is the Timbren Axle-Less Suspension # ASR5200S01. This system is rated for 5,200 lbs and can be used as a single axle or you can use 2 for a tandem axle trailer. There are a few great things about the Timbren system. It increases ground clearance since...
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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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  • Does the Trailer Height Change when Using EZ Flex or Equa-Flex Equalizers
  • The E-Z Flex Heavy Duty Rubber Suspension System # K71-652-00 is designed to fit in place of a specific equalizer, # TREQ104, which is 2 inches tall. When used to replace this equalizer or another with similar dimensions there is no height gained or lost. Adding height or reducing it cannot be achieved by just changing the equalizers. It would require replacing all of the suspension hangers as well to raise or lower the trailer equally and keep the suspension level. The comparable...
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  • Recommended Replacement Leaf Springs For Loadmaster Trailer With 3500-Lb Axle
  • We do have a leaf spring that will work for your trailer but it is designed for a 4,000-lb axle It is part # SP-051275. This is a 4-leaf double eye spring and it measures 26-inches center-of-eye-to-center-of-eye. You may notice a little difference with these springs on your trailer. The ride could be a little stiffer, and when the trailer is empty it may bounce a little more but the length of the springs will work for you. If you are wanting to use a shorter leaf spring you may...
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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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  • Replacement Dexter Equalizers for 2-1/2
  • I do have an option for you but we do not carry the exact replacement you are looking for. For your trailer, I recommend using the Dexter Equalizers part # 13-140-3. These equalizers are almost an exact replacement for the ones you currently have. All of the dimensions will be the same except for the bolt hole diameter that attaches the rear leaf spring to the equalizers. The bolt you have that attaches the rear leaf spring to the equalizers on your trailer is a 7/8" diameter bolt and the...
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  • Can a Dexter 5,200 Lb Axle Be Replaced With a Dexter 6,000 Lb Axle
  • It sounds like you are asking if you can use the Dexter Trailer Axle Beam part # 8327826 to replace the axle beam included with Dexter Trailer Axle with Electric Brakes part # 8327816-EB and reuse the braking assemblies and hubs/drums. If that is the case then yes you can as the diameter of the spindle where the bearings and grease seal ride are the same. Therefore, even though they may use a different outer bearing, the diameter for the inside of the bearing where it sits on the spindle...
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  • Recommendation For Upgrading Equa-Flex Cushioned Equalizer
  • The Equa-Flex Equalizer, Item # LC279687, is already an upgraded equalizer so there are not many "next level" options. The Lippert Components Center Point Air-Ride Suspension Upgrade, Item # LC1565391, is an overall better system but not significantly so. If you need a smoother ride, you could add shocks like the Lippert Bolt-On Mount Kit w/Heavy Duty Shocks, Item # LC281281. The Timbren Trailer Suspension, Item # TTRA1032, could also be an option worth considering. If you...
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  • Can Bigger Equalizers be Used on a Tandem Axle Trailer
  • Even though the measurements that you have are slightly shorter than what is on the Equa-Flex Cushioned Equalizers # LC279687 that you referenced, it will be okay to replace your current equalizers with this part. You will simply want to use shorter shackle straps to compensate for the difference. To upgrade your hardware kit I recommend the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285. This kit includes the Never Fail bushings which never...
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  • Recommended 60 Inch Long Axle with Hubs to Use with 13 Inch or Larger Wheels
  • The Dexter Trailer Idler Axle w/ Idler Hubs # 20440I-EZ-60 that you were looking at features a hub face length of 60 inches and a spring center length of 48 inches. If this is the size you are needing, then I recommend taking a look at the Dexter Trailer Idler Axle # 20545I-EZ-60-15. Just like the axle you were looking at, this axle features a 60 inch hub face length, a 48 inch spring center length, and comes with idler hubs and all the needed bearings, races, and seals. This is a 2,200...
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  • Could Dexter E-Z Flex Equalizer Replace Morryde CRE 3000
  • The Morrydy CRE3000 is a similar setup to the EZ Flex setup so there wouldn't be any problem going from one to the other. It would just be a matter of picking out the correct setup based on the dimensions of your current equalizers. You are going to have to measure your current equalizers to find the correct one. The part # K71-653-00 is a replacement for a 7-3/4 inch equalizer and the part # K71-652-00 is a replacement for a 5-5/8 inch equalizer. You will need to measure the dimensions...
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  • Can I Replace TREQ104 Equalizers With TREQ356 And What Difference Will It Make?
  • You can replace the Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 5-3/4" Long - 9/16" Center Hole, # TREQ104, with the Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 6-1/8" Long - 9/16" Center Hole, # TREQ356. Even though you can replace these parts, moving to a longer equalizer will cause one axle to have a disproportional amount of weight on it. The smooth transfer of the impact won't be distributed as effectively which will cause a rougher ride without as good traction....
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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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  • Replacement Equalizer Needed for Dexter Axle Equalizer 13-142
  • If you are simply needing to replace some worn equalizers then we actually do carry the part you are searching for. It is listed as part # K13-142-02 on our site and is a direct replacement for the 13-142 equalizer that you referenced. I confirmed this with my contact at Dexter Axle. If you are looking to upgrade your current equalizers then no, there is no equalizer upgrade we currently carry that will directly fit the large dimensions that you referenced. You would have to change out...
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  • Recommended Drop Axle for Trailer With 80 Inch Spring Center
  • The best option we have for you is going to be with the Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles part # 7685269 which has a 3,500 lb weight capacity. This will allow the tires to extend out past your load and will provide you with the low load height you will need. The spring center spacing on this axle is set at 80" but if this does not match what you have on your trailer now then you can always move them to where you need them with part # TRSS238. The leaf springs will...
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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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  • Can Lippert Shock Kit Be Used on Trailer with Less Than 4" of Clearance Between Tire and I-Beam
  • I reached out to my contact at Lippert and he said unfortunately if you don't have at least 4 inches of clearance between the I-beam flange and inside of the tire the Shock Kit # LC281281 cannot be used. There is not a solution that would allow this system to work properly. For an alternate solution to provide additional suspension support for a smoother ride on the trailer I recommend the SumoSprings Trailer Helper Springs # TSS-107-40. These springs will act as shock absorbers to...
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  • What Are the Correct Replacement Leaf Springs for 6,000 lb Axle
  • There are leaf springs available with measurements close to 25" from center of spring eye to center of spring eye, though the correct one is going to depend on your axle capacity, which should be stamped onto the axle itself. Knowing this information is going to be important to get you the correctly rated springs. The options for you are going to be 6-Leaf Double-Eye Spring # SP-222275 which is for 5,300 lb axles and is 24-7/8" from center of spring eye to center of spring eye. Please...
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  • Recommendation for Upgrading Double-Eye Springs Suspension to Remedy Trailer Lean
  • To replace the 6,000lb leaf springs on your 2014 Grand Design 337, a great option is the Double-Eye 5-Leaf Springs, # SP-111275. These are 25-1/4 inches long, so to confirm they will fit your trailer, it is best to try and measure your current, unloaded leaf springs to assure proper replacement length. Typically, the number of leaves on a suspension system will not have an affect on the setup, especially when looking at leaf springs within the same weight capacity. The difference in the...
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  • Upgrading Leaf Springs on a Trailer with a 3500 Pound Axle
  • If you are wanting to go to higher capacity leaf springs I would advise against it. The problem is that since the trailer axle is rated for 3,500 pounds you won't gain any additional capacity by switching to higher capacity springs. What it will do is not allow the suspension to compress as much leading to a very stiff and jarring ride for the trailer and anything in it. Another problem is that alternate springs may not have the correct measurements and that would mean that the spring...
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  • Replacement 5 Leaf Slipper Spring for a Tandem Axle Dump Trailer with Two 6K Axles
  • If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will be very stiff and can cause a very rough ride on the trailer. For the best ride I recommend sticking with the recommended size # SP-232275 and I do recommend replacing all of the springs at the same time to avoid uneven wear.
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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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  • Bolts Needed To Install Slipper Springs
  • For the spring eye you would use the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079, but slipper springs don't have the second spring eye, so a bolt is not used on the back end. You can also use a wet bolt like # 126B2, for less friction. The Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # 166081 are for use with the spring and shackle straps used with a shackle straps on a tandem setup with an equalizer but it could be used for the springs and the...
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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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  • Continuous Trailer Bearing Failures On Single Wheel
  • I am sorry to hear about all the issues you are having with your trailer. Based on what you described, I would lean towards an issue with the spindle rather than the weight capacity of the hubs. The reason being that if your hubs were truly underrated, you would most likely have issues with all of them not just the same spindle. The damage to your spindle is likely not noticeable however, it only takes a small degree off center to cause problems. If the angle at which the spindle lies in...
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  • Recommended Trailer Suspension and Bushings for Heartland Cyclone 4200 Triple Axle Toy Hauler
  • The Equa-Flex Cushioned Equalizers - Double Eye Springs - Triple Axle - 5K to 8K # LC279689 along with the Never Fail Triple Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281288 will give you the equalizers and bushings that should never need to be replaced along with the corrosion resistant metal shackle straps that should not rust due to the zinc finish. This is an excellent combination that will serve your Heartland Cyclone 4200 Toy Hauler very well. I've attached...
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  • Replacement 1-3/4-Inch-Wide Trailer Slipper Leaf Springs
  • It sounds like your trailer uses slipper-type leaf springs like # SP-179275. This and other similar 1-3/4-inch-wide springs are shown on the linked page. You will want to confirm the axle's weight rating; this usually appears on a sticker or plate on the axle itself. You need to choose a properly-rated spring so that the suspension it neither too stiff nor under-rated for the weight load. You will then want to choose a slipper spring of the appropriate length. Do note that a well-worn...
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  • Hubs with 5 on 5 Bolt Pattern that Will Fit a Timbren Axle-Less Suspension System
  • There are Timbren axle-less suspension systems that do not come with hubs so that you could add your own such as # AKIHUB-550-35-EZ-K. But the hubs with 5 on 5 bolt patterns that would also fit a Timbren system only accept up to 15 inch wheels. The other issue is that vehicle wheels are not meant to be used on trailers and often have an offset (mounting surface of wheel not in the dead center of the wheel) whereas most trailers take wheels with a zero offset. With that said the hub listed...
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  • Changing 3,500 Pound Trailer Axles to 5,200 Pound Axles
  • The first thing to consider is if the axle(s) are actually bent. Trailer axles have a bow in them so they are higher at the center than at the ends. When under load the axles straighten out some. That is part of how they get their capacities. If the axles are bent from damage then that is another story. Like you said the 5,200 pound axles that we have include spring seats that are on the bottoms of the axles. In order to have the spring stacks on top of the axles all you would need...
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