Upper Control Arm Shim Set 1/64" 1965-1966

Upper control arm shims are used to adjust caster and camber alignments on your Mustang. The shim is placed between the control arm and shock tower on the control arm studs. Shims are 1/64" thick to help deliver the perfect alignment settings.

Camber is adjusted by adding an even number of shims to both control arm studs. This pushes the top of the tire out and increases positive camber. Caster is adjusted by adding shims to just the front or rear of the control arm stud to push the tire forward or backwards.