Front and Rear Disc Rotors & Ceramic Brake Pads. + Rear Brake Calipers. CHEVROLET SILVERADO 1500 2001 6 Lug; with RPO Code JC5 (Vacuum Power, 4 Wheel Disc, 7200lb). CHEVROLET SILVERADO 1500 2002 6 Lug; with RPO Code JC5 (Vacuum Power, 4 Wheel Disc, 7200lb); without 4 Wheel Steering.