Shims ~ Spring ~ HFS ~ Pair4 Degree Shims for 1.5" Shackles
6 Degree Shims for 2.5" to 3" Shackles
HFS Spring shims counter problems caused by installing taller than stock height shackles. Caster correction Shims help correct drive shaft angles to relieve stress on U-joints by rotating axles upward. This changes the driveshaft angle, which ultimately reduces the pinion angle and reduces driveshaft vibration. Shims correct steering caster angle. Shims reduce wear on knuckle, bearings & tie rod ends. Shims help stabilize steering and reduce road wander.
Install thick part of the shim to the front of the rear axel. Shim installs on center pin of the spring stack.
Select 4" x 3/8" Pins if needed. Pins sold in Pairs
Note: System will add $3.00 to base price for pair of Pins.