Fits 10.5 & 10.25 Sterling rear axles common in OBS and Ford Superdutys with an axle tube diameter of 3.5"

Low profile Spring perch designed to help reduce axle wrap.  Perch is 3/4" lower than factory perch.

Three mounting holes for ease of centering wheel in wheel well.

U-Bolt length is measured from inside of U-bolt bend to end of U-bolt