Designed to be a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks, Features forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals, Engineered to overcome the rust, bore pitting, and seal failures that plague the OE caliper design, Provides low-maintenance performance and a huge weight savings with high temperature reliability for the street and track, Calipers can be used with most wheels that clear the OE calipers.