ACDelco 18A2956AC - Coated Rear Disc Brake Rotor These dependable aftermarket Advantage Coated Disc Brake Rotors offer quality at an economical price. Manufactured with multiple alloys for improved heat dissipation and performance They are also ready to be installed right out of the box, with no machining required. High Heat Dissipation Rust Resistant ACDelco 18A955A Disc And Hub Assembly - Fits CHEVROLET GMT-400, GMC SIERRA Advantage Coated Rear Disc Brake Rotor Find many great new & used options and get the best deals for Disc Brake Rotor-Coated Rear ACDelco 18A2956AC at the best online prices at ! Free shipping for many products Quality validated for proper metallurgy and correct brake plate thickness They feature a non-directional ground finish that helps to extend brake pad life and minimizes thickness variation. Disc Brake Rotor-Coated Rear ACDelco 18A2956AC Rounded radius for added strength