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Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 6-1/8" Long - 9/16" Center Hole
(431 reviews)
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Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 6-1/8" Long - 9/16" Center Hole
Part Number: TREQ356
In Stock
$40.86
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- Reviews (431)
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TruRyde Trailer Suspension Parts - TREQ356
Highlights
- 6-1/8" Center-to-Center Length: Keeps tandem or triple axles aligned for smooth towing.
- 9/16" Bolt Holes: Matches common spring eye and hanger bolt sizes for a proper fit.
- Fits 1-3/4" Double-Eye Springs: Works with standard trailer leaf springs for easy pairing.
- Transfers Load Between Axles: Lets suspension flex so bumps are absorbed evenly.
- 2-1/2" Height Profile: Maintains correct ride height and axle spacing balance.
- Bushings Included: Comes ready for installation to restore even suspension travel.
Features to know about
Smooth Ride Over Rough Roads: Curved Equalizer Transfers the Load Evenly
Bumps and dips can really toss your trailer around if the suspension can’t flex right. This curved equalizer connects 1-3/4" wide double-eye leaf springs on tandem or triple axles and keeps things steady by letting the axles move with each other. At 6-1/8" center-to-center between shackle holes and 2-1/2" tall from top to bottom hole, it spreads the impact across both axles so the ride stays smooth and your load doesn’t bounce around.
Solid Suspension Geometry: Built for 9/16" Hardware
Loose or mismatched bolt sizes lead to sloppy travel and noise. With 9/16" diameter holes at the center and ends, this equalizer fits standard suspension bolts and hangers for a snug, reliable connection. It mounts cleanly without guesswork, restoring proper alignment so your springs, shackles, and hangers all work together as they should.
Reliable Connection Between Axles: Distributes Weight Where It Belongs
Uneven loads and road shocks put stress on each axle differently. This equalizer balances those forces by pivoting between them, so one axle takes up slack when the other hits a bump. The result is better tracking on the road, less wear on tires and suspension parts, and a steadier feel behind the wheel.
Direct Replacement Fit: Works with Standard Double-Eye Hangers and Shackles
Replacing worn suspension parts shouldn’t turn into a custom job. This equalizer installs using standard shackle straps and center hangers (sold separately), making it an easy swap for tired components. It includes bushings so you can bolt it in and bring your trailer’s suspension back to proper working order without extra parts chasing.
Specs
Compatibility
- Fits: 1-3/4" wide, double-eye leaf springs with 9/16" spring eyes
Hole Diameters
- Center bolt hole diameter: 9/16"
- Left and right bolt hole diameter: 9/16"
Dimensions
- Distance between outer shackle bolt holes (center on center): 6-1/8"
- Distance between hanger bolt hole and outer shackle bolt hole (center on center): 3-1/16"
- Height from shackle bolt hole to hanger bolt hole: 2-1/2"
- Distance between outer shackle bolt holes (center on center): 6-1/8"
- Distance between hanger bolt hole and outer shackle bolt hole (center on center): 3-1/16"
- Height from shackle bolt hole to hanger bolt hole: 2-1/2"
EQ-356 TruRyde Curved Equalizer - 6-1/8" Long x 2-1/2" Tall
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- Did not arrive in time
- Package not accepted
Ratings & Reviews
4.8
431 reviews
by:
Patrick
07/19/2026
I have not installed these yet. However, the holes for the bushings appear to be out of round. I will update once I receive the replacement bronze bushings and install them.
by:
Rich
04/09/2018
Excellent service and prices. Needed to replace curved equalizer, shackles and bolts, nylon spring bushings, u-bolts, and wheel bearing seals on my sailboat trailer. etrailer had everything and shipped it fast. Staff at etrailer was excellent!
by:
Shari
07/12/2021
These were just what we needed for repairs on our 1983 stock trailer. The old parts were quite worn. We gave the trailer a face lift as well, and it should last another 37 years.
by:
Brian
05/20/2020
E trailer had the exact parts I needed. This was an exact replacement for my worn out parts.
by:
Adam
03/30/2026
great suspension parts
by:
Barrett
06/13/2026
Worked as it should
by:
Brian
06/24/2026
Arrived quickly. Yet to install
by:
Gene D
06/18/2017
The parts arrived days before we expected. We had the job done before we expected the parts. Thanks for your service.
by:
chuck finley
11/05/2016
my friend ordered springs and hardware for my pontoon trailer. man did they get here fast. everything in one box. packed real good. no damage, nothing lost or left out. I finally got everything back together. fits great. i was worried that the springs where going to be to light, but the trailer sits just like new. sorry no pics. I was to greasy to get the camera out. But its like new again. yes etrailer.com i'm gonna be back next time I need parts. and i've already told all my friends with boats and trailers about etrailer.com . I am a happy customer. thanks again. C Finley
Chuck F.
11/15/2017
Thanks for your follow up. Parts are still doing fine. I am still very happy with my shopping exp. With etrailer, and I have had the opportunity to share my exp with several people hope they come shopping with you.
Chuck F.
11/15/2017
Thanks for your follow up. Parts are still doing fine. I am still veryhappy with my shopping exp. With etrailer, and I have had the opportunityto share my exp with several people hope they come shopping with you.
by:
David
09/17/2025
Great product excellent service and fast shipping
by:
Steven
04/28/2022
Equalizers worked perfect. Trailer is repaired and back to work.
Steven
5/1/2023
Still working great
by:
Shon Smith
09/28/2017
Staff was very helpful and product was delivered on time. Thank you
by:
Donald R. Mabee
08/23/2019
Parts are O.E. for my trailer . Part is a match for my old part.
I had already purchased a Heavy Duty Kit but the equalizer was not the correct one for my equipment. When I called to see if you had the correct equalizer your rep. couldn't
find the 356 part I needed and we settled on a more triangular one that had the right measurements for the bottom width ( 6 1/4") of my o.e. but was an 1 1/2" higher. After I hung up from him I searched you web site and found the right TREQ356 part listed.
I tried to get him back on the phone / and left him a message. I called back got another rep. got the right part ordered and he sent me a shipping label to return the part that was actually the wrong part for my trailer.
So Thank You very much for your swift attention to my problem. Everything else in the Heavy Duty Kit is enter-changeable and seems to fit great.
Part Well Done
I had already purchased a Heavy Duty Kit but the equalizer was not the correct one for my equipment. When I called to see if you had the correct equalizer your rep. couldn't
find the 356 part I needed and we settled on a more triangular one that had the right measurements for the bottom width ( 6 1/4") of my o.e. but was an 1 1/2" higher. After I hung up from him I searched you web site and found the right TREQ356 part listed.
I tried to get him back on the phone / and left him a message. I called back got another rep. got the right part ordered and he sent me a shipping label to return the part that was actually the wrong part for my trailer.
So Thank You very much for your swift attention to my problem. Everything else in the Heavy Duty Kit is enter-changeable and seems to fit great.
Part Well Done
by:
Gary A
04/18/2017
replaced the suspension on my 5th wheel--all went well and now I am much releived to lub with a grease gun and not a oil can. one of the wet bolts was defective--I called you sent one out quickly--thanks
by:
Jim S.
07/08/2013
Our trailer is just like the one in the video that demostrates changing the equalizer and shackle straps. This equalizer was the closest in size to our old one although the height is shorter but the trailer sat too high anyway. We changed all the shackle bolts,bushings and shackle straps. It took 3 hours and 2 people, but I have to say the trailer now rides real smooth and quiet. The real test will be when we need to haul the next load of livestock. Very happy with the quality and fast shipping.
by:
Bill c
05/19/2011
not machined. It did come with bushings, a point that I would like to have known, because I now have more inserts on hand than I need.
My total order included bolts, shackles and bushings. Prices for these parts were very competitive for the market place. However the cost for standard shipping was pretty much out of line. Also, for the amount paid for shipping, eight days to receive was a little slow.
On the plus side, installation was a breeze, and any questions that I might have had were more than adequately addressed on the web site.
My total order included bolts, shackles and bushings. Prices for these parts were very competitive for the market place. However the cost for standard shipping was pretty much out of line. Also, for the amount paid for shipping, eight days to receive was a little slow.
On the plus side, installation was a breeze, and any questions that I might have had were more than adequately addressed on the web site.
by:
Dean W.
05/19/2015
My boat trailer broke and I needed to replace the entire suspension system. I called around to local businesses and would have to wait several weeks for them to order the parts. I began searching online and found etrailer.com. I looked up the parts I needed and all of them were in stock. The shipping was free and the parts were received sooner than I could have ordered them from a local retailer. Also, the price from etrailer.com was cheaper than what I would have had to pay locally. I am very pleased and will continue to use etrailer.com for all of my trailer part needs. I plan on telling everyone I see about my experience and suggest they use etrailer.com as well. Thank for helping me fix my trailer. I will post pictures when the job is finished.
by:
Craig T.
06/12/2016
Very happy with all of the items that I ordered from etrailer.com last year. Etrailer.com is a first class merchant and is my preferred source for all things related to towing/trailers.
by:
Mike
06/26/2025
Took care of my needs right away! Received my order in two days!
by:
Bob N.
06/29/2017
Bushing holes are rough with slag in them. Make sure you have a strong reamer / drill bit to clean them out. My buddy warned me beforehand and provided the drill bit. Glad he did or I'de be up on jack stands!
by:
Craig
06/28/2017
These suspension parts are a perfect fit and have solved my utility trailer problems. Great help from etrailer and a great information packed web site.
by:
Scott
11/16/2022
Very fast shipping!
Scott
11/24/2023
Worked great my dump trailer suspension sion is as solid as can be.
by:
Larry
09/21/2018
I replaced the plastic bushings with the bronze bushings, and added a grease zerk at the pivot. With the shackle bolts being wet bolts I'm sure this will be a great upgrade to my trailer suspension.
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Gene D.
6/18/2018
So far the trailer hasnt moved since I replaced the parts. Its sitting nice and straight though!