ACDelco Silver (Advantage) Disc Brake Rotor and Hub Assemblies are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors These assemblies provide reliable vehicle braking power With this assembly the rotor is conveniently pre-fitted to the wheel hub as one combined piece Application-specific vane configuration offers greater safety and performance, dampens noise and vibration, and maximizes airflow to keep your rotor running cool They also feature a non-directional ground finish that minimizes thickness variation and helps to extend brake pad life These dependable aftermarket Disc Brake Rotors offer quality at an economical price ACDelco Silver (Advantage) parts are a good choice for many vehicles on the road today Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage.