Add the safety, reliability and performance of rear disc brakes to your vehicle with our drum to disc brake conversion. In this kit you receive everything you need to mount single piston disc brakes to your GM 10 & 12 Bolt Rear Axle. All components used in these GM rear disk brake kits are new high quality, precision machined products with a zinc plated finish to reduce corrosion and extend the life of your brake system. The heavy duty parking brake caliper will allow you to use the parking brake cables included in the kit to actuate your parking brake.