UFP Unique Functional Products

UFP Trailer Buddy Replacement 3,750 lb. Torsion Axle Trailing Arm #36090

  • Sale
  • Regular price $ 94.34
Shipping calculated at checkout.

UFP Trailer Buddy Replacement 3,750 lb. Torsion Axle Trailing Arm #36090

This replacement trailing arm works with all Trailer Buddy-UFP 3750lb. capacity torsion axles.  Mounts easily to the desired position by splines that allow for ride height adjustment.  The complete assembly is ready to be bolted on to existing torsion axle with mounting bolt (included).  Standard 4-Bolt brake flange integrates into the arm and allows for an instant upgrade for brakes.


  • Trailing arm is zinc plated for superior corrosion protection
  • Tooth and Groove or Spline attaches easily to any 3,750 lb. UFP Torsion axle
  • 4-Bolt Brake Flange integrated into trailer arm
  • Mounting bolt, nut, and washer are included
  • Tapered spindle size is 1 3/8" x 1 1/16"
  • Bearings and Seal Info:
    • 68149 Inner Bearing and 44649 Outer Bearing
    • 1.68 ID Seal (168255)

UFP Torsion Axle end unit trailing arm

Customer Reviews

Based on 21 reviews
Ronald B.

Got the part quickly and exactly the correct one i needed. Installed & on the road again with my Ranger z521. Good job all around.

Fred A. (Salt Lake City, US)
Axle spindle

Excellent part made it USA very happy with it. I will be back when I need more trailer parts.

John R. (Washington, US)

Very happy with shipping and delivery price was in range of other suppliers

Jason E. (Fort Myers, US)

Everything was exactly what it was supposed to be.

Joseph S.
Good fit

Part fit good and was received within a few days. Only made one trip with it....seems to be working fine.

Chris Y. (Omaha, US)

Fit perfect excellent service

James D. (Milledgeville, US)
perfect fit and fair price

Part came in just a few days and worked exactly as advertised. The price was fair for the product and included the necessary attachment hardware. could not be happier as a customer.

Jeffry G. (Guaymas, MX)

works good

Scott M. (Culver City, US)

Worked just as the original. We lost a bearing on our triple axle trailer. Didn't notice it right away so the hub dropped on to the axle stub. Grinded it down so bad that we had to replace it. It was on there for 20 years so it was extremely hard to get off! Had to cut it in 3 different spots but got it off and didn't mess up the splines. Then the new one popped right on. New wheel hub assembly and we were good to go! Thanks guys!

Willy H. (Pawhuska, US)
Good quality

Good quality and quick shipping