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