1. Trailer Leaf Spring Suspension
  2. etrailer
  3. Standard Equalizer
  4. Equalizers
  5. Double Eye Springs
  6. 5-3/4 Inch Long
Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links

Item # AP233
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Our Price: $51.12
Trailer Leaf Spring Suspension
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etrailer Trailer Leaf Spring Suspension - AP233
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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 - 2-1/4" Links part number AP233 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (250)
  • Q & A (50)
  • Photos
  • 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 - 2-1/4" Long Shackle Straps

Replaces AP233






Customer Reviews

Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links - AP233

Average Customer Rating:  4.8 out of 5 stars   (250 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:

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



- 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:

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:

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:

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:

Parts fit perfectly. And work great , no problems after a year of use ( Horse trailer with horse and gear) . Well done ! 901876



- AP233
by:

Had to replace springs on an older 29ft travel trailer because one broke. Went ahead and replaced this kit. The fit was great and easy. 898753



- AP233
by:

All good. 896298



- AP233
by:

Great upgrade. Twice as heavy duty as the stock parts that broke 888464



- AP233
by:

Very easy to install all parts in box and was on time. Will use them for future needs. 880731



- AP233
by:

Top quality parts that worked perfectly on my trailer to correct my old sagging springs. 880526



- AP233
by: 09/09/2020

every thing was sent and every thing fit 876185



- AP233
by:

Product looks good it off box. As always very fast shipping and even bear their own timeline 889571



- AP233
by:

Fast and easy ordering, got exactly what I needed and was true to specs 865769



- AP233
by:

Excellent product and great service!! 856634



- AP233
by:

Works great !!! 844150



- AP233
by:

Product was just want I needed replaced 98 4 leaf spring with 5 leaf raised trailer by 2 in every thing worked out great did both sides 829853



- AP233
by:

I am currently upgrading the equalizer between leaf springs on a boat trailer. This product from eTrailer is the exact thing I needed. It is of high quality and delivered is a very reasonable amount of time. Thank You once again for good trailer parts. I am a repeat customer, 10 trailers of many different types, eTrailer is my source for all parts. 800818



- AP233
by:

Worked and is working daily as it should a year later. 793204



- AP233
by:

The only problem I had was with the nuts and bolts I need to chase the threads to clean them up. Other then that it was an easy install. 792322



- AP233
by:

Perfect fit, quality hardware, made replacing a broken leaf spring a simple task. 791046



- AP233
by:

Suttle differences in equalizer. Worked fine. 784696



- AP233
by:

Very high quality replacement springs and bolts 778655



- AP233
by:

20 minutes per side and I have never done this before.. I did have a great tool 20 volt battery powered impact. Its not a must tool but pretty close. You remove he nuts from the backside and it would be a little more difficult but not impossible.. This job is so easy you will wonder why you were abusing you tires for so long 778242



- AP233
by:

Being forced home from Coronavirus,decided to rebuild my car trailer,received parts on date promised and all the parts were correct 774267


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Show More Reviews

Ask the Experts about this etrailer Trailer Leaf Spring Suspension

  • Compatibility of the Suspension Kit for 6,000 lb Axle
    The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links # AP233 is not only for under 3,500 lb axles. It is for 33 inch spacing. The Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 3-1/8" Links # e99ZR and Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs # K71-359-00 are also for this same spacing. The leaf springs and the u-bolt mounting hardware varies based on axle capacity,...
    view full answer...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Are Bushings Required with the Tandem-Axle Trailer Equalizer Kit # AP233
    The equalizers of the part # AP233 have bushings in them already. The leaf springs you would use these with would already have bushings as well most likely. Typically people do not need to buy bushings with this kit or with this kit plus leaf springs.
    view full answer...
  • Availability of 8 inch Long Straight Trailer Suspension Equalizer
    We do not have any standard trailer equalizers that are 9 inches long from eye to eye. Is this a slipper spring setup by chance?
    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 Trailer Suspension Parts for Trailer with 2 Square Axle
    It looks like you've got a pretty good grasp on all of this and thank you for the detailed information; it looks like most of the parts you've mentioned will work for you. For the leaf springs, the 26" long # SP-051275 will be the best option for you since springs stretch out over time and they're right around the capacity of what the axles likely is. The next closest size would be the 25-1/8" # SP-212275, but I would be hard pressed to believe that your old ones have stretched out over...
    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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Trailer Equalizer Kit Recommendation that are 5 inches Long
    Best option we have would be the part # APT5 which comes with equalizers that have outer bolts that are 5-3/4 inches apart on center which would be close enough to work in your application. The shackle straps are 2-1/4 inches long and the bolts are 9/16 inch which is the standard diameter for trailer suspension bolts.
    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...
  • 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...
  • Recommended Equalizer Kit For 5,000 lb Axles On Tandem Axle Trailer
    The Tandem-Axle Trailer Equalizer Kit for 1-3/4" Wide Double-Eye Springs - 5-3/4" Long # AP233 is designed for use on trailers with tandem, 2,000-lb to 7,000-lb axles. This means it is rated for systems with up to a total weight of 14,000 lbs. This will be a kit that absolutely can be used for your tandem 5,000 lb axles. You may also want to consider the Tandem-Axle Trailer Hangers for 1-3/4" Wide Double-Eye Springs - 3-1/4" Tall Front # H248 if you don't have hangers for your system...
    view full answer...
  • Should Shackle Bolts on Trailer Suspension Get Lubrication
    Yes, I would recommend keeping the bolts of the # AP233 lubricated. An easy way to do this is to use wet bolts like part # 126B2 which have a zerk fitting that allows for easy application of grease to them. Or you can use Never Fail Bushings like part # LC279684 that don't require any lubrication.
    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 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...
  • Replacement Trailer Leaf Springs for Tandem Axle Hash Travel Trailer
    Hanger height and spacing, spring length, shackle length and equalizer size are all variables in a trailer suspension and it is possible that the same length springs can fit in more than one application. The dimensions on the included charts are just meant as a guide. You should have no trouble at all using the 5-5/8-inch E-Z Flex Heavy Duty Rubber Suspension System # K71-652-00 since it has an operating width range of 5-1/4- to 6-1/4-inches. But you may still need to re-position your...
    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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