Allstar ALL60201 Upper Control Arm Shim, (Pack of 10) Control arm shim is an upper type that is .125 inch thick and designed for individual mounting Shim is slotted for 1/2 inch bolts Shims allow easy adjustment of caster/camber during front end alignment Also available in .062 thickness by ordering Allstar part 60200 (sold separately) Sold as one set of 10 pieces