GM Rear Disc Brake Conversion Kit, 1968-1969 Chevy Camaro, 1968-1974 Chevy Nova, 1968-1969 Pontiac Firebird, Fits 10 & 12 Bolt Rear Axles w/Staggered Shock Configuration, Premium Kit w/Cross-Drilled & Slotted Rotors, Raw E-Brake Calipers7|JEGS GM 10 & 12 Bolt Rear Disc Brake Conversion Kit for Select 1967-1974 GM Models [Premium Kit with E-Brake & Raw Calipers].