SPC break-away axle shims (six pack) provide heavy-duty caster adjustment and can alter pinion angle on Jeep CJs and similar vehicles with 1-3/4" to 2" wide leaf springs. Featuring a 5° taper and stackable design, these shims let you make stepped changes in caster or pinion angle without major modification. Six shims are included per box for straightforward alignment work.
SPC Performance BREAK AWAY AXLE SHIMS(6)