Allstar Performance rear disc brake kit for race car brake systems. Upgrades rear brakes for reliable stopping in racing setups. Bolt-on installation for track use.
GM Metric. 1 Piston Caliper. 11.750 in Plain Iron Rotor. Offset Hat. Kit includes rotors (.810" x 11.75"), universal rotor hats, rotor bolt kits, caliper mounting bolts and caliper mounting brackets for GM intermediate metric style calipers (ALL42083 and ALL42084).