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When your axle doesn’t sit square or shifts under load, it can throw the whole suspension out of line. This spring seat welds onto a 3" diameter round axle—typical for 5,200-lb to 7,200-lb setups—to give the leaf spring a solid, repeatable mounting point. The cutout on the flat side locks around the raised knob on the spring to keep it from twisting or sliding, so the axle stays planted and tracks true.
Getting the right match between the axle and spring width makes a big difference in how your trailer rides. This seat is built to work with standard 1-3/4" or 2" wide leaf springs, giving you the flexibility to line everything up the way it should be whether you’re setting up a new axle or replacing worn perches.
When you’re running heavier gear or covering long miles, the spring seat has to take the stress without deforming. This TruRyde seat is made to handle the demands of axles in the 5,200- to 7,200-lb range and measures 4" long by 1-7/8" wide. The centered 1/2" bolt hole keeps the alignment reliable, and the radius fits the axle perfectly for a clean weld and strong hold.
Each axle needs two spring seats—one for each side—to keep the leaf springs square and balanced. Weld them in place, bolt up your U-bolt kit, and you’ve got a solid foundation ready for thousands of miles of steady towing.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Good price and availability. Fast shipp ing
Just what I needed. Good quality with fast shipping.
I could not figure out how but, when I ordered axel it was set at 74” c to c mine needed to be 70” c to center. I may need 2 more axels if I do how can it be made 70” c to c .
I am using two second hand axles for my trailer and the spring seats were in the wrong place. They were hard to find because I didn't know what to call them, but I was really grateful they were available. They will complete the installation of the axles and are sturdy and cut perfectly.
Just what I needed for my project and at a fair price! Shipping was fast.

Roger T.
9/10/2017
everything working as it should, good product!
It goes down straight no tire wear.
Fast shipping and great products. Only thing that would have been better was if it all would have been made in America.

Chris P.
7/9/2017
So far so good
The seats were just what I needed Last year I moved the trailer
springs from the bottom of the axel to the top when I did I had
to turn the axel end to end it caused the trailer to wear tires out .
brakes to wear out .I am turning axel back and welding new seats
leaving hubs running right. Back to factory only on top of axel.
Thank You
Product was exactly as described. Used the info on website for location of mounts. Couldnt be happier.
Awesome customer service as well.
Just what I needed, thank you very much
I installed a set of these spring mount brackets one year ago and I am glad I purchased it from etrailer. I purchased it on line just to make sure it would work on the 1964 axle that I was going to weld it to in order to complete the install of a new set of springs that I also purchased from etrailer. Everything fit perfectly and etrailer is now my go to for all my trailer needs. George J. was very professional and knew the product(s) would work. And it did!
Thank you George and etrailer.
The axles that I ordered last year are still working out great. But even better than the parts was the service I got from etrailer. It was so great working with a company who took the time to listen to my project and help me get the right parts I needed, especially coming right off the heels of a terrible experience dealing with bad information and wrong parts from a competitor. Even with some damages in shipping, the returns/ and replacements were no hassle, with most issues being quickly resolved and not even costing me any additional downtime. As a contractor keeping a small fleet rolling, your competency and professionalism have made me a customer for life!! You guys at etrailer will be my first stop for trailer parts.
I replaced my leaf springs, drums, brakes and added the Dexter E-Z Suspension kit to my Keystone Cougar Fifth Wheel trailer last year. This was my first time working with etrailer and I can’t say enough about how well it all went from the ordering to the install.
Tammie P did a amazing job with knowing what parts would work best on my trailer. Tammie also gave me updates on my deliveries that I appreciated. I had a trip planned short after I received my parts. So having someone at their end checking on arrival dates helped. In the future I will definitely use etrailer for all my trailer needs. Thanks again for all the help! Great Team....
Worked perfectly. Easy to weld on
Products were as advertised, worked well and installation went as planned. Accomplished task - moved under hung leaf springs to over axle (tandem drop) on older horse trailer, to regain bumper clearance - new truck sits higher than old, also allowed extended goose neck to eliminate tail gate damage, while leveling trailer (nose no longer stuck in air). I would purchase again without hesitation.

James K.
7/29/2021
Works as expected, Im happy with the product and results- would purchase again if I have a trailer in the future that needs a lift.
Great product and great company to work with. I ordered regular shipping and they upgraded me to 3 day shipping an no charge. Very satisfied with the product and company.
fit as it should
Shipping was fast and part was packaged with lots of care! 10/10 would absolutely buy again.
I have no complaints about the product. Not having the equipment or space to do the installation myself, I paid to have the work done. Seems to fit up perfectly and accomplishes what I need. Thank you for helping me make the right decision when you heard of my needs
On all points, website, customer service, product quality, and quick delivery etrailer is top drawer!
Perfect fit as described! Uploaded picture for proof. So far i couldent be happier with etrailer.com, great prices and fast shiping. I haven't had an issue with anything so i have no opinion as far as customer service goes. I would definitely recommend to a friend.
Fit perfect, great quality.
This is the second trailer I've used these for. They made it easy to convert to a spring over axle configuration.
These saved my bacon as my trailer didn't match any axles you stock.
The axle and spring seat are doing well after a year. Even with my shade-tree mechanic welding abilities and thousands of grueling miles thru some of the roughest highways in North America (namely West Virginia) both are holding up to the task.
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Lloyd
9/22/2015
Great. Does the job with no problems.