Trailer Leaf Spring Suspension

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etrailer

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Standard Equalizer

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Equalizers

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Double Eye Springs

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5-3/4 Inch Long

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Item # AP233

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Trailer Leaf Spring Suspension

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Trailer Leaf Spring Suspension AP233 - Double Eye Springs - etrailer
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Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing. Lowest Prices for the best trailer leaf spring suspension from etrailer. Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs part number AP233 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (213)
  • Q & A (45)
  • Videos (1)
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  • Why etrailer?

etrailer Trailer Leaf Spring Suspension - AP233

  • Standard Equalizer
  • Equalizers
  • Double Eye Springs
  • 5-3/4 Inch Long
  • Tandem Axle
  • etrailer

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing.


Features:

  • Suspension kit lets you attach 4 leaf springs (sold separately) to your trailer frame
    • Works with 1-3/4" wide double-eye springs
    • Hangers sold separately
  • Equalizers transfer load and impacts from one axle to another by permitting movement between the axles
    • Springs attach to ends of equalizers with included hardware
  • Bolts secure equalizers and springs to the hangers on your trailer
  • Shackle link assemblies with bolts secure springs to equalizers
  • Kit includes:
    • 2 Equalizers
    • 8 Shackle straps
    • 14 Bolts with locknuts


Specs:

  • Application: tandem-axle trailer with 1-3/4" wide double-eye springs
  • Axle spacing: 33"
  • Equalizer dimensions: 2" tall
    • 5-3/4" Long from center hole to center hole
  • Shackle strap length: 2-1/4" from center hole to center hole
  • Bolt dimensions: 3" long x 9/16" diameter



Hanger Locations for Tandem Axle

Leaf SpringsA - Distance Between Front and Center HangersB - Distance Between Center and Rear HangersC - Distance Between U-BoltsD - Distance Between Center of Axle and Trailer FrameAxle Diameter
SP-169275 (1020)25"25"29"5"1-3/4"
(typical 2,000-lb trailer axle)
SP-219275 (PR722)
SP-220275 (PR3)
SP-218275 (PR4)
SP-212275 (PR4B)
SP-111275 (PR5)
SP-198275 (PR6)
29-1/2"29-1/2"34"4-1/2"2-3/8"
(typical 3,500-lb trailer axle)


TSW-19 Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs

Replaces AP233







Video of Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for etrailer Trailer Suspension - Leaf Spring Suspension - AP233 Review

Today, we're going to take a look at the Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs. Now, this part will allow you to attach 4 leaf springs to your trailer frame. It is designed to be used in conjunction with part number H248, and that is a complete kit of hangers, the front, center, and rear hangers, and we also sell a complete kit of this part and the hangers, and that would be part number AP233-H248. That's also sold separately on our website. Now also, on the product page for this part number, if you look, there'll be a table and it'll show you to determine your hanger location when you use those hangers with this, based on your type of leaf springs. Now, this part will achieve 4-1/2" or 5" of clearance between your trailer frame and axle, depends on your axle size.It includes everything laid out here on the table.

It includes the 2 5-5/8" long curved equalizers. And just to give you a dimension, when they say 5-5/8, the measurements of the center of this hole to the center of that hole. If we take a ruler and go center to center, you can see right at the 5-3/4" measurements. Now, the holes on these are 9/16 diameter on all the holes. And then the height from the center of the equalizer end hole to the center of the equalizer center hole ...

So in other words, if we drew a line between these 2 holes and measured up from that line to here, you could see that would be right at 2". Now, it comes with 2 of those equalizers. It comes with 8 of the 2-1/4" shackle straps. It comes with 14 of the 3" long 9/16 diameter shackle bolts, and it comes with 14 of the 9/16 diameter lock nuts.Now, this is designed for use on trailers with tandem 2,000 pound to 7,000 pound axles, and it does not include any of the components needed for mounting the axle to the springs. But that should do it for the review of the Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs..


Customer Reviews

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - AP233

Average Customer Rating:  4.8 out of 5 stars   (213 Customer Reviews)

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 33" axle spacing.

- AP233
by:

Recieved the parts in a timely manner but went to install and realized the kit doesnt come include the bushings for the leaf springs. Would have gladly paid the extra 2 or 3 dollars to have the bushings in the kit. I would think the kit would have had them. If I'm replacing the entire assy it only makes since to replace the leaf spring bushings. With the exception of the trailer being down for a couple more days because I have to order the bushings, the kit I received met my expectations. 671423



- AP233
by:

good shipping..very fast.. and packaged very strong...will fix my shimmy and bounce on my wood trailer..time to cut wood for the winter..web site is very user friendly..i like the install instructions shown with each item...selection says it all...thanks..will order from etrailer again... 21815



- AP233
by:

Quality parts at a great price. I already had to change the shackle straps and of course the bolts since they have lock nuts. The reason for the change was due to heavy loads and poor roads. I would like to see the shackle straps made of thicker steel to handle these conditions. 282053



- AP233
by:

I have a 23 year old Sunline camper I have towed all over the country. While repacking my wheel bearings I noticed excessive wear in the equalizers. I found etrailer on line and ordered the AP233 kit which included 2 equalizers with bushings and new straps, bolts and locknuts. The price including shipping was fantastic. I ordered the parts and they shipped immediately. They arrived on the day promised and I had them installed in less than 2 hours. I would highly recommend etrailer to anyone needing parts for their trailer!! 219900



- AP233
by:

Excellent product. Everything fit together as it should. Put simply... I was very impressed. 233555


Comments

Well, its been a year and I am still very impressed with the suspension parts I got from eTrailer. I have ran my car trailer from Michigan down to southern Ohio, Indiana, and Illinois. Had no issues what so ever. The trailer handled beautifully.

Sgtbass64 - 12/09/2016

22024

- AP233
by:

Well, my suspension replacement and over/under swap went great! You guys were very helpful in ensuring I got the right parts and didn't waste money on shipping and other parts I didn't need. It tows like a dream now. I hardly even notice it behind me and I really don't have to slow down to .05 MPH for every little dip in the road. 500912



- AP233
by:

Fits perfect no problems made very well 519130



- AP233
by:

I need to order another shackle kit....my buddies trailer was in bad shape 637296



- AP233
by:

Nice set! 730081



- AP233
by:

The kit I received was excellent, all the parts fit perfectly !! Thank you ! Would definitely buy from again and recommend this company !! 729110



- AP233
by:

Very nice products. Bolts are larger and better quality than auto store or tractor supply bolts. Same with the shakles. I'm using this for a tandem dump trailer on my horse farm. 722080



- AP233
by:

the Kit fit perfectly installation was simple no more spring noise . 717406



- AP233
by:

Fast shipping great product. Would definitely buy from again. 714810



- AP233
by:

Works well as an original equipment rep lacement. 707945



- AP233
by:

Have not used products yet but the information found on the website is very helpful and shipping is outstanding. 714463



- AP233
by:

Great buy 705973



- AP233
by:

Very good and fast service. Thank you 699658



- AP233
by:

Quality was great! 698356



- AP233
by:

fits and works good 697104



- AP233
by:

I just received my parts and started the work. Everything is good, correct, and at a good price. Thanks guys 688779



- AP233
by:

I bought these for the bolts and shackles. It was cheaper to replace them that way. Did the job I needed to do. 683781



- AP233
by:

Great people to deal with. They are good at keeping you up to date with your order. Was suppose to be delayed because supplier was out of stock but the parts were pretty much delivered within the time etrailer first stated. Would definitely do business with etrailer again! Thanks !!! 683122



- AP233
by:

Carol went above and beyond. She made the process of delivery easy ,with her outstanding effort and patience things worked out great. Thank you. I will be using you again.very happy 683070



- AP233
by:

Excellent replacement parts for worn out trailer suspension. Fitment was great. And shipped fast. 682867



- AP233
by:

Got the parts I needed at a fair price. Good quality. Ae holding up well. 680358



- AP233
by:

Excellent product and customer service! 676656



- AP233
by:

Took the appropriate measurements to confirm these parts world fit, the equalizer is smaller, the shackles are shorter and will limit travel but don't have time to play around and have use them. I guess you get what you pay for, to much to hope for. 673434



- AP233
by:

The old components on a 1986 flatbed trailer were worn out and about to fail. Everything in this kit measured and fit perfectly. 657915



- AP233
by:

It fit perfect it was a third of the cost of local dealers I could not be happier back-and-forth out of California and Oregon 15 times so far. Not one issue 655482



- AP233
by:

Working exactly as it should and in perfect form 654596



- AP233
by:

Product arrived faster than expected. Leaf springs installed easy and work great. Great service from etrailer 646993



- AP233
by:

Amazing quick service and its much appreciated when in a bind. 644683



- AP233
by:

Fast shipping, just what I ordered! Will definitely be a return buyer. 643815



- AP233
by:

Certainly the best price around but probably because it's all made in China. I was also missing one of the bolts. Rather than mess with calling and waiting I just used one of my old ones. Probably better anyway. 641016



- AP233
by:

Kit was an exact fit. Replaced all worn parts and now road ready again. 640382



- AP233
by:

good delivery time and products as decribed, saved my trailer from being a road side attraction .. 639993



- AP233
by:

Price was great.. only complaint the 5 1/4 equalizers i needed didnt come in a kit. Not a big deal,bought this kit and equalizers seperate still good price. Who knows maybe my cougar 5th wheel has odd ball equalizers. 637657



- AP233
by:

Parts fit perfectly, and were high quality. Delivery, as usual, was fast. Thanks! 637402



- AP233
by:

Worked out great. The customer took the trailer from Pa. to Vermont with no problems. 637294



- AP233
by:

product arrived complete and undamaged, haven't installed yet but looks to be good quality material. Thanks 636498



- AP233
by:

Great service and product again. Have trailer under carriage rebuilt and rolling. Thank You! 619572



- AP233
by:

Excellent price fast shipping 615452



- AP233
by:

I am pleased with my shackle bolts equalizers and spring bushings. They are stock replacement parts so the cost was much more reasonable than the other companies wanted to sell me heavy duty replacement kit. The RV is 7 years old and this is first time replacing these parts. So I can expect another 7 years. I received the parts in three business days. It took 2 1/2 hours for this 72 year old man to replace one side. Tomorrow I will tackle the other side. 614323



- AP233
by:

Exactly what I ordered, very good quality and exceptional price. The customer service team goes above and beyond. Would definitely order from this company again. 612130



- AP233
by:

This is the second time I've used etrailer and I have been greatly pleased with the results. The products I've purchased have been as expected and the orders were shipped right away. Very quick service. The Customer Service Dept. has been very responsive as well. 611979



- AP233
by:

Great product no problems at all 608857



- AP233
by:

Everything went great thank-you for the fast delivery 608692



- AP233
by:

I ordered these parts for my husband and he is very satisfied with them. I was especially impressed with the Customer Service Representative that assisted us. He was very polite, informative, and a pleasure to work with. We will definitely be purchasing from etrailer.com again. 607967



- AP233
by:

a 604728



- AP233
by:

The suspension parts I bought for my trailer fit perfect as I had hoped. And after a year of service, I have to say they are doing a fine job still. When needed, I assure you I will be ordering from you again. Thank You. 603565


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Ask the Experts about this etrailer Trailer Leaf Spring Suspension

Do you have a question about this Trailer Leaf Spring Suspension?


  • 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.
    view full answer...

  • 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.
    view full answer...

  • 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...
    view full answer...

  • 6k Trailer Leaf Spring and Hanger Kit Availability for Tandem Axle Trailer
  • We have a few 6k leaf springs that could work for you but we need to know the length of the springs that you need. For a 25-1/4 inch spring we have the part # SP-111275. For a 26 inch long spring we have the part # SP-053275, and for a 25-1/8 inch spring we have part # SP-221275. For a tandem axle hanger kit we then have the part # AP233.
    view full answer...

  • Available Shackle Link Hole Spacing
  • The shackle straps included in kit # AP233 are the part # 18-11GALV. The hole spacing, center to center, is 2-1/4-inches. The shackle strap closest to 2-1/2-inches is part # TRSL256, on which the center to center hole spacing is 2-9/16-inches.
    view full answer...

  • How Tight Should Trailer Suspension Hanger/Equalizer Bolts Get Torqued
  • Suspension bolts are not designed to be torqued down tightly as this prevents the suspension from being able to move like it needs to be able to do. So the included solution with the kit part # AP233 is the lock nuts of the kit. The nuts have nylock in them which means that they will not back off regardless of how "loose" they are installed on the bolts. Basically you tighten the nuts down so that the excess side to side movement is removed from them but the shackles can still freely move...
    view full answer...

  • 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...
    view full answer...

  • Bushing Material in Equalizers of Suspension Kit for Tandem-Axle Trailers # AP233
  • The bushings that are in the equalizers of the kit part # AP233 are Nylon.
    view full answer...

  • Can 5-3/4 Inch Tandem Axle Equalizers be Replaced with 5-5/8 Inch Equalizers
  • The Tandem-Axle Equalizer Kit, # AP233, will work as long as all other measurements are the same. Check that your shackle straps are 2-1/4 inches from center hole to center hole. The 5-3/4 inch long equalizer, # TREQ104, we carry is a direct replacement for the 5-5/8 inch long equalizer.
    view full answer...

  • Replacement Equalizers Needed for EZ Loader Boat Trailer
  • When it comes to determining which equalizers are needed for your EZ Loader boat trailer, you will need to get some measurements. I have included a diagram with information as to what measurements are needed. I have also included a link to our equalizers and once you have the measurements you can use the filters on the page to narrow the search. It has already been narrowed down to those for the 1-3/4 inch spring. If you would still like to send me the picture and also your equalizer...
    view full answer...

  • 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.
    view full answer...

  • Do Trailer Suspension Equalizers Carry Weight Ratings
  • Trailer suspension equalizers like # TREQ104 do not carry weight ratings but they are available in many different sizes. They will handle as much weight as any springs you'll be using with them. Part # TREQ104 measures 5-3/4-inches between its lower hole centers and kit # AP233 includes this same item among its component parts.
    view full answer...

  • Typical Hanger Spacings for Tandem Axle Trailer with 3,500 lb Axles
  • A lot of it depends on the length of the springs and equalizers that are used. 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 trailer...
    view full answer...

  • 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
    view full answer...

  • Where is Trailer Suspension Equalizer Length Measured
  • The equalizers in trailer suspension hanger kit # AP233 are 5-3/4 inches long measured from the center of one spring eye to the center of the other spring eye. I have included a picture illustrating this for you.
    view full answer...

  • How to Choose the Correct Equalizer
  • There is unfortunately no master list of every part number of every model of every year of trailer, so you would need to measure to find replacements. For example, equalizer # TREQE1 fits 1-3/4" wide, double-eye leaf springs with 9/16" spring eyes, has bolt hole diameters of 9/16" and is 7-3/4" from center of bolt hole to center of bolt hole.
    view full answer...

  • Replacement Shackle Straps For 1999 Ranger Boat Trailer With Tandem Axles
  • On your 1999 Ranger boat trailer with tandem axles, I recommend the Replacement Shackle Link with Bolts for Dexter Trailer Suspension Kits # 018-026-05. If instead you want to piece together your system, I recommend using the Locknut - 9/16" Diameter # TRFA916DLNZ, never fail bushings # LC279684, and galvanized strap # 18-11GALV. If you want to use the regular wet bolts, you can use # 126B2. If you want a complete basic kit, you can use the Tandem-Axle Trailer Equalizer Kit for 1-3/4"...
    view full answer...

  • Finding Correct Replacement Tandem Trailer Axle Equalizer Kit
  • As long as the new equalizer has the same hole spacing as the existing equalizer, it'll work just fine. You'll also want to make sure the height of the equalizer is also the same. Put a ruler across the center of the two bottom bolt holes, and measure up to the center to the top bolt hole. If this distance is about two inches, then the # AP233 would be the correct replacement.
    view full answer...

  • Replacement Equalizers and Leaf Springs for Tandem Axle with 3,500 lb Axles
  • Sounds like it's a good time to replace all of the leaf springs and equalizers. So for springs the part # SP-212275 would be a great option as this is a tiny bit shorter than your current springs (they stretch slightly over time), and they are rated for 3,500 lb axles. Then for an equalizer kit the part # AP233 would replace all of your bolts, equalizers, shackles, and nuts.
    view full answer...

  • Are There Equalizer Kits Available with Replacement Shackles, Bolts and Equalizers
  • Sounds like you are talking about an equalizer kit like the part # K71-449-00 for a heavy duty equalizer setup or the part # AP233 for a standard duty set.
    view full answer...

  • Replacement Trailer Shackle Recommendation to Replace Shackle that is 2-1/2 inch on Centers
  • The closest shackle we offer to the 2-1/2 inch size you need is the part # 115052 which is 2-5/8 inches from hole center to center. This would only be 1/8 of an inch larger than what you need so it would work well.
    view full answer...

  • Do I Need Shorter Straps or Taller Equalizer for My Trailer with Double Eye Leaf Springs
  • Considering all that has been done so far, I think the first step I would take here is to go with the shorter shackle straps. If you're still getting contact with the trailer frame, I would then take a look at upgrading to a taller equalizer like the Dexter EZ-Flex # 013-144-03 or you could have the front and rear hangers cut off and welded back on 1/2" further from each other in each direction. I've linked our selection of shackle straps to this question so you can find what you're...
    view full answer...

  • What Is Normal Deflection Of Leaf Springs On Trailer
  • The typical spring deflection for leaf springs on a trailer is up to 1-1/2 inches when at capacity. The recommended clearance with leaf spring suspension on an unloaded trailer is between 2 - 2-1/2 inches. It sounds like you have a little more than that since you flipped your axle. Leaf springs only tend to deflect about 1-1/2 inches when carrying a load.
    view full answer...

  • Replacing Leaf Spring Recommendation for a 2004 Weekend Warrior Super Lite FK 2100
  • Since you have dual axles you will split the overall capacity of your trailer between the two axles. So you would not want a double eye leaf spring set for 8,000 lbs even if we made one because that would be way overkill for your setup. The closest spring sets that we offer would be the 4-Leaf Double-Eye Spring # SP-218275. This spring has an axle capacity of 4,800 lbs, so when you double that because of your dual axle setup you end up with a capacity of 9,600 lbs which is more than...
    view full answer...

  • Hanger Kit Recommendation for Equalizer that Measures 7-3/4 inches In Length
  • 7-3/4 inches from front hole center to back hole center of an equalizer is a pretty common size. For a replacement you'd want the part # TREQE1. Then for hardware we have the Never Fail Kit part # LC281285 which comes with a set of very durable bushings that are self lubricating which means no maintenance!
    view full answer...

  • Should Nylon Bushings in Tandem-Axle Trailer Equalizer Kit AP233 Be Greased
  • When installing Tandem-Axle Trailer Equalizer Kit # AP233 or a similar kit you will probably find it easier to insert the shackle bolts into the bushings if you lightly grease the bolts. A small amount of lubrication will both aid installation and provide a degree of lubrication for the whole assembly. You can use a general-purpose lithium grease like # L11316.
    view full answer...

  • Are Nuts that Come with Trailer Suspension Kit # AP233 Lock Nuts
  • The threads of the nuts that come with the Suspension Kit for Tandem-Axle Trailers # AP233 that you referenced are considered lock nuts. They should thread pretty tightly once the nut gets significantly onto the bolt which prevents it from backing off.
    view full answer...

  • Do Trailer Suspension Equalizer Kits Come with Leaf Spring Bushings
  • Most leaf springs for trailers come with bushings so the equalizer kit part # AP233 does not include them. We offer some bushings though if you are in need of them. I attached a link to a page that has all of them. You will need to determine the inner and outer diameters that you need plus the width. A very popular one is the part # TRBU11566 that has an ID of 9/16 inch, is 1-3/4 inches long and has an OD of 11/16 inch.
    view full answer...

  • Equalizer/Hanger Kit Recommendation with Equalizer TREQ356
  • We can piece together an equalizer kit for you, however the TruRyde Equalizer, # TREQ356, is not included in an equalizer kit or a hanger kit. Next, you will need 14 shackle bolts that are 3 inches long and have a 9/16 inch diameter. For this, you can use Shackle Bolt, # 166081. Finally, you will need 8 shackle straps. The most common size is the 2-5/8 inch shackle strap, # 115052. I recommend measuring your current shackle straps to verify you are buying the correct replacement...
    view full answer...


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Info for this part was:

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