A1257-4 W/BK CAL

This kit contains all the parts needed to convert 1978-1988 GM G-body vehicles from drum to disc brakes. Manufactured from quality materials, these rear conversion kits are designed to bolt directly onto the stock axle and provide the performance and durability expected from a modern brake system. It offers up to 30% more braking power and is a significant improvement over stock drums, providing better performance with a factory look. The upgraded calipers offer modern braking capability in a compact design, are zinc-coated for corrosion resistance, and feature a chrome steel piston with a large diameter bore and a built-in internal parking brake. The kit re-uses factory parking brake cables and includes DOT Flex hoses and new hard lines. All brackets are e-coated for long-life rust prevention. It features two 11.25-inch diameter heavy-duty vented rotors. This disc brake kit will work with most 15-inch rims.