UFP Unique Functional Products

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

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  • Regular price $ 75.12
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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 14 reviews
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

charlie b. (Kerhonkson, US)

perfect fit for my 2014 z521c ranger trail.

Lucky M. (Hilo, US)
Very satisfied

Exactly what I needed and arrived in a timely manor.

RICHARD J. (Virginia Beach, US)
Torsion Axle Trailing Arm

Perfect fit for my Skeeter boat trailer.

Kenny B. (Alexander, US)
Very satisfied

The part was exactly as advertised and was delivered promptly. Arrived on the day scheduled.

Jeff R. (White Oak, US)
Torsion Arm

Works great fast service

Bobby Y. (Minneapolis, US)

Price was good but shipping was horrible. Took 8 days to receive my parts

SANDRA A. (Albuquerque, US)
Good Job

Good job, it's exactly what I ordered. Thank you.