The R1 Concepts drilled black brake rotor for 2009–2020 Chevrolet Express 3500 (rear left) is a vehicle-specific replacement rotor per the description. It features a drilled rotor face and black finish as listed. Fit this rotor on the rear-left position and service the matching rear-right rotor concurrently to preserve balanced braking on the axle.
R1 09-20 Chevrolet Express 3500 Rear Left Drilled Black Brake Rotor