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Long trips and uneven roads can make a trailer bounce and jolt. This 2-leaf slipper spring flexes under load to absorb road shock, keeping the ride smooth and steady. It acts as part of the suspension system for a 1,800-lb axle, helping reduce wear and tear on the trailer and keeping things level even on bumpy surfaces.
Each spring carries up to 900 lbs, working together to handle an axle capacity of 1,800 lbs. With sturdy steel construction and a 3/8" leaf thickness, it’s built to manage regular hauling without sagging or losing shape. It gives dependable support mile after mile, whether you’re on pavement or rougher roads.
Getting the fit right matters for proper suspension movement. This spring measures 30" from the center of the eye to the end, with a 1-3/4" width that matches standard hangers. The front eye includes a 9/16" nylon bushing for smooth rotation on the suspension bolt, while the flat slipper end slides cleanly into the rear hanger or equalizer for a solid connection.
Whether you’re swapping out worn springs or building a new setup, this design makes it straightforward. It fits hangers that are either pre-mounted or part of an aftermarket kit (sold separately). Replacing both springs at once ensures even alignment and consistent performance, keeping your suspension geometry right where it should be.
| Part Number | A | B | C | D | E |
|---|---|---|---|---|---|
| TRU42FR | 16-1/2" | 30" | 15" | 17-3/4" | 4-7/8" |

Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
came packaged as it should safe and sou nd
Perfect fit, great softer spring for my light use trailer.
Spring was fine, had to modify due to being to long. Needed 22 inch, and ordered a 24 in. My mistake.
cheap but seem good quality
very well made, trailer feels much smoother on the road.
Perfect fit! Better load carrying capability (3 leaf replacement for 2 leaf springs). The right part for the job! I rebuilt my King boat trailer for a 16 ft Lund skiff with 30 hp Yamaha outboard. Austin B at etrailer (Thanks Austin) helped me determine fitment. While this was only one part of the rebuild it was a strategic choice. Now I can carry all my extra gear in the boat when it’s on the trailer and springs are not overloaded!
Perfect replacements! BERY easy to measure for and order.
perfect fit very reasonable price and excelant service
It fit the trailer!
I was amazed at how quickly they arrive d.
Fast and just what I ordered
Express delivery. Perfect fit!
Good product fast delvery
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Gwendolyn Y.
1/8/2026
Good luck on the re-build, Tim! How much more do you have left to do?