Recommended Replacement Parts for a Travel Trailer With 3.5K Axles

Updated 02/05/2024 | Published 02/03/2024

Products Featured in This Question

Leaf Spring Center Tie Bolt with Nut, 3/8" x 3"

(78)

$7.10

2-3/8" Round Trailer U-Bolts (Qty 2)

(251)

$23.91

Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter

(657)

$16.35

Question:

Hi, need help finding the correct parts for my TT with 3500# Lippert axles. Had an axle slip rearward a few inches on the leaf spring. The center bolt was sheared and is missing, so will need that. Also I understand the U bolts should not be reused so I’ll need them. Finally the center hole in the spring perch is probably ovaled out a bit and should be replaced as well. I have pics and can provide measurements as needed. Appreciate any help finding the right parts. Thanks!

asked by: Robert M

Expert Reply:

I believe we have just about everything you need, ideally we'd need you to measure your center bolt and u-bolts to make sure the here will fit.

So, for a center bolt you can use the Leaf Spring Center Tie Bolt with Nut # 38-3TB which measures 3" long and is 3" in diameter. If you need something different let me know what size bolt you need and i'd be happy to find something else.

For u-bolt replacements, you can use the 2-3/8" Round Trailer U-Bolts # SP01-040 which should fit your axles, but measures 5 1/2" long so they might be too short/long - so again, if you need a different size let me know.

Finally, for a replacement spring perch you can use the Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter # TRSS238 which will work with typical 3.5K axles that have 1-3/4" or 2" wide springs.

expert reply by: Bryce D