GM Caster/Camber Adjusting Tool This tool is designed to make caster/camber adjustments quick and easy. Simply place it into the holes in the cross-member and lower control arm, then turn the tool�s turn-buckle nut to hold the correct adjustment. This allows you to tighten the adjusting bolts. For use on 1993 to 2000 Chevrolet Camaro and Pontiac Firebird. Also works on 1986�92 Buick Riviera, Cadillac Seville, Oldsmobile Toronado, and 1986�91 Buick Regal. No. 7840 � GM caster/camber adjusting tool.