Shackle Bolt with Locknut for Double-Eye Springs - 3" Long

Ask the Experts about this Redline Trailer Leaf Spring Suspension

• Can Shackle Bolt with Locknut, # 166081 Be Used in Place of Dexter Bolts
  You will be able to use the Shackle Bolt with Locknut, # 166081, in place of the old Dexter bolts you have. If the bolts were shorter, you would not be able to use them but since they are basically the same length, you should not have any problems. I have included a link to a video on replacing shackle bolts that you may find helpful. We have numerous shackle links depending on what size you need. I have included a link to them for you to view along with a link to our FAQ articles on...
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• Shackle Bolt With Nut For 3 Inch, 3-1/2 Inch, And 3-5/8 Inch Length
  Shackle Bolt with Locknut for Double-Eye Springs - 3" Long, # 166081 and Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079 both come with a nut. The Step Wet Bolt for 1-3/4" Double Eye Springs # 34007-187-00 does not come with the nut, however we have confirmed a fit with nut # 192600
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• Recommended Torque Specs for 9/16 and 1/2 Inch Trailer Suspension Hardware
  If you will be using 9/16 inch fasteners then torque them down to 110-114 foot pounds. If using 1/2 inch torque them to 76-78 foot pounds. You can find all sorts of different torque specs for the same size bolts or nuts and they will all be around these same figures. If you use Loctite use the blue kind, such as # LT37643, which will allow you to remove parts using hand tools. The red kind is going to be too strong. Also make sure the Loctite only goes on the threads and on any part...
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• Can Replacement Shackle Bolt Have Longer Thread Length
  I do understand your concern with the potential of a slightly longer thread length on the Shackle Bolt # 166081 causing the shackle strap to sit right on the threads. The fact is though that the shackle positioned there as opposed to the unthreaded shank is not going to cause much of a difference, if any. The shackle straps should not wear down any quicker because of this. As long as the bolt's overall length is correct then this will work perfectly for your trailer.
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• Torque Specs for Redline Shackle Bolt with Locknut
  There actually is not a specific torque rating for shackle bolts like the Redline # 166081 that you referenced. You just want to make sure that the bolt is long enough so that when installed you have at least 2 threads protruding from the nut. This particular bolt measures 3 inches in length and the locknut is included. I have attached a short video demonstration that you can also check out.
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• Shackle Straps Break on a 20ft Tandem Axle Trailer and the Rear Axle Slides the Tires
  One of the most common causes for shackle straps to break is over-tightening of the shackle bolts. If the shackle bolts are too tight, the shackle straps are not able to move with the suspension. This causes binding and it can bend or even brake the shackle straps, bolts and hangers. The sliding that you are experiencing on the rear axle is common for tandem and triple axle trailers and it is usually called scrubbing. The rear axle scrubs because trailer axles are not steering axles,...
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• 9/16 inch Diameter Shackle Bolt Longer than 3 inches Availability
  We have the # 166079 which is a 9/16 inch diameter shackle bolt like you need that measures 3-1/2 inches in length.
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• Availability of Wet Equalizer Bolts for a Joyrider Equalizer on a Prowler Trailer
  We do offer the wet shackle bolts you will need. The are the Wet Equalizer Bolt with Locknut and Grease Zerk, part # 126B2.
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• Torque Spec for 9/16" x 3" Long Bolt for Suspension
  There is not a specific torque requirement for bolts like the Shackle Bolt # 166081. You'll want to make sure that you're using a lock nut and ensure that the bolts you use are long enough so that when installed you will have at least 2 threads protruding that lock nut.
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• Length of Redline # 166081 Suspension Shackle Bolt
  According to Redline, the # 166081 bolts are 3.1 inches long.
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• How to Pick Out Replacement Leaf Springs for 2007 Weekend Warrior Model CR3905
  I was able to find out that your 2007 Weekend Warrior model CR3905 is triple axle trailer with a GVWR of 16k. That means for each axle you'd need a capacity of at least 5,333 lbs. Which means you most likely have 6k axles. We have a few options for that capacity for leaf springs but you'll need to measure the length of your current springs to be sure. If you have 25-1/4 inch long springs you'd need part # SP111275. If you have 26 inch long springs you'd need part # SP-053275. If...
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• Trailer Suspension Kit and 6 Inch Long Equalizers for Tandem Axles and Double Eye Springs
  Suspension kit # APT4 for tandem axles with double eye springs has 6-1/4 inch long equalizers so it is a possible option for you. Kit # AP233-H248 uses 5-3/4 inch long equalizers. But if you have to have equalizer # TREQ310 then the individual parts will have to be pieced together since there isn't a kit with that equalizer. If you go that route then you would also need: 8 of # 18-11GALV 14 of # 166081 1 of # H248 (or other hangers, see link)
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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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• 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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• 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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• Installing Lippert Equaflex Suspension And Never Fail Hardware To 5th Wheel Toy Hauler
  The Equa-Flex Cushioned Equalizers w/ Never Fail Bushings - Double Eye Springs - Tandem Axle - 6K to 8K # LC279688 and Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285 will give a nice upgrade to your 2014 Keystone Raptor MP300 Toy Hauler. The only hardware you need in addition is the equalizer bolt to your center hanger. For this you can use the Zinc Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # TRFA73Z916DLNZ or standard bolt # 166081.
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• Replacement Bushings, Eye Bolts, and Shackle Straps for a 1-3/4 Inch Wide Leaf Spring
  The prices are a reflection of factors such as demand, availability, cost, and several other variables. The nylon bushings are also the least cost effective component of the kit. Unfortunately, we do not offer the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs part # LC281285 with 1-3/4" long bushings. If you have 1-3/4" wide leaf springs then you will want to piece your own kit together with the Never Fail Bushings part # LC279685, Shackle Bolt with Locknut...
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• Can Suspension Wet Bolts Be Used with Both Nylon and Bronze Bushings
  You are correct that wet suspension bolts like # LC126238 are usually used along with bronze bushings for the longest possible service life but using them with nylon bushings is permissible. If standard bolts like # 166081 were to be replaced with wet bolts it would be fine to continue using the existing nylon bushings (for convenience) but in an all new installation bronze bushings would be preferred.
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• Recommended Leaf Spring Bushings and Shackle Bolt with Locknut
  I recommend using the Never Fail Bushings - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" - Qty 14 # LC279685. For 1-3/4 inch springs you will want the Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # 166081. There is no specific torque rating for shackle bolts, you simply want to ensure they are long enough so you have at least 2 thread protruding from the bolt. You want to tighten the bolt until the knurls go through the shackle link or hanger and the bolt head is...
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• Recommended Leaf Springs and Hardware for 2001 EZ Loader Boat Trailer With 1560 lb Axle
  There are different leaf spring lengths available for your axle capacity, so you will need to measure from the center of spring eye to spring eye. We have these 3 options: 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 20-3/8" Long # SP-169275 4-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 26" Long # SP-124275 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 23-1/2" Long # SP-113275 For your connection to your hangers, you will want the Shackle Bolt with Locknut...
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• Torque Specs for Axle Spindle Nut, Suspension Hanger Bolts, and Lug Nuts for Trailer
  It looks like you might be asking about a few different torque specs so I'll address all of them separately. For a trailer axle spindle nut like part # 165686 you will need to run the spindle nut down until there is no more side-to-side play in the hub and then back it off to the next notch so you can secure the cotter pin, like part # 165649, through the spindle. When it comes to hanger bolts like the Redline # 166081 there isn't a specific torque rating either as you just need to...
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• Replacement Leaf Springs for Single Axle Trailer with 26 Inch Long Old Leaf Springs
  Correct, the loaded and unloaded length for a leaf spring will be different. In order to choose the correct replacement you will need to remove all weight from one side of the trailer and then measure the eye to eye spacing of that leaf spring. The new leaf spring you choose should then be very close to this but it can also be a bit shorter as leaf springs will flatten out over time as they wear. The most likely replacement we have for you is part # SP-220275 which measures 25-1/4"...
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• Double Eye Spring Recommendation and Suspension Parts for 6,000 Lb Trailer Axle
  The leaf spring I recommend is 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles part # SP-053275. These leaf springs come with 9/16" diameter nylon bushings installed. The amount of leafs do not matter as much as long as the spring is rated for your axle capacity. I recommend TruRyde Shackle Link part # TRSL225. The shackle straps are 2-1/4" long. The bolts you need are part # 166081. I also recommend curved equalizers part # TREQ356 that measure 6-1/8" long. We do not carry an equalizer...
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• 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles Shackle Bolt Diameter
  The 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 20-3/8" Long part # SP-169275 takes a 9/16" diameter shackle bolt like part # 166081. The trailer's weight rating is determined by the two axle capacities so one axle would not need to be rated to support the whole load if it's a tandem axle trailer. The capacities would be split up. If your boat is gear, fuel, and trailer is around 3,200 lbs I recommend to go with the 2-2,000 lb axles and 1,000 lb leaf springs because if not your...
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• Hangers to Use with Leaf Spring SP-212275
  The spring you ordered # SP-212275 would work well with the hangers # 115917 and # 30-20 with shackle straps # TRSL350. These parts are very similar to what comes with the # APS1 which is what is recommended with the springs you ordered. Only thing else you might need is the shackle bolt part # 166081. The distance between the hangers would need to be 24-7/8 inches.
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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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• 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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• Replacement Trailer Suspension Shackles, Equalizers and Bolts
  We can help you with replacement trailer suspension parts for your Keystone Cougar. Our main page for suspension components is linked for you; on this you can select items like shackle straps, spring bushings, bolts and equalizers. Shackle strap # 115052 has a hole spacing of 2-5/8-inches, the closest to yours that we have. Overall dimensions are 4-inches x 1-1/4-inches and the bolt hole diameter is 9/16-inch. With this you can use standard bolt/nut # 166081 or wet bolt # 126B2 which...
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• Tandem Axle Equalizer Kit Recommendation with 6-1/8 inch Long Equalizers
  I can piece you together everything you need, but there isn't a kit like the part # AP233 that you referenced that has a 6-1/8 inch long equalizer. First you would want the part # TREQ356 as an equalizer. You would need two of them. A quantity of 8 of the shackle straps part # TRSL225 14 of the bolts part # 166081
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• Replacement Shackle Strap Recommendation that is 3-1/2 inches Long
  Your question came in blank, but based on the picture you submitted it looks like you are in need a replacement shackle strap that is 3-1/2 inches in length. For that you would want the Shackle Strap # TRSL225. This strap is 3-1/2 inches long like what you have pictured with the hole measurements 2-1/4 inches on center. For a new shackle bolt you would want the Shackle Bolt part # 166081.
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