For Chevrolet K1500 Pickup 1988-1991 w/ F44 Heavy Duty Chassis (Rotor is 1.28″ Thick). For Chevrolet K1500 Pickup 1992-1999 All Models. For Chevrolet K2500 Pickup 1988-1998 6 Lug Models ONLY. For Chevrolet K1500 Suburban 1992-1999 Gas; 4WD 6 Lug Models ONLY.