This kit provides an easy to install, bolt on solution for upgrading your Cars 10 or 12 bolt rear-end to disc brake performance. This kit will dramatically improve your stopping performance from drums to 11 rotors. Chevelle, GTO, El Camino, Olds.Complete Rear Disc Kit Includes. Large Red GM Calipers with built in emergency brake (originally off of 1979 Cadillac Eldorado). Works on C-Clip or non C-Clip rear ends. Each rotor is drilled for GM 5 x 4.75'' w/ 7/16'' stud bolt patterns. Fits A- body GM Vehicles, Chevelle, or any midsized Chevy passenger car with a 10/12 bolt pattern & non-staggered shocks. Does not fit the S10 Chassis or any other truck or full Size cars. The item "Rear Disc Brake Conversion Kit for Standard GM 10/12 Bolt Rear End, Red Calipers" is in sale since Saturday, July 8, 2017. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Brakes & Brake Parts\Discs, Rotors & Hardware". The seller is "stepps_auto_supply" and is located in Asheville, North Carolina. This item can be shipped worldwide.