2x Front Drilled and Slotted Brake Rotors: S-55072. CHEVROLET SILVERADO 2500 1999 - 2000 Dual Piston Front Caliper. Front Drilled and Slotted Rotor + Brake Caliper + Ceramic Brake Pad Kit. CHEVROLET SILVERADO 3500 2004 - 2006 Brake Code JH6; for Vehicles with Single Rear Wheel.