Fitment: **For Models With 12 Inch (305Mm) Front And 12.78 Inch (325Mm) Rear Rotors** Replacement For Chevy: 2003-2005 Astro 2002 Avalanche 1500 (Exc. Limited Slip Axle; Single Piston Rear Calipers) 2000 Suburban 1500 (Single Piston Rear Calipers) 2001-2002 Suburban 1500 (Exc. Limited Slip Axle; Single Piston Rear Calipers) 2000-2002 Tahoe (Except Limited Slip Axle; 4Wd; Rear Brake Type: Disc) Replacement For Chevy Silverado 1500: 1999 (With Dual Piston Front Caliper) 2000 2001 (Rwd; Single Piston Rear Calipers) 2001 (Exc. Limited Slip Rear End; 4Wd; Single Piston Rear Calipers) 2002 (2 Wheel Steering; Single Piston Rear Calipers) 2003 (2 Wheel Steering; Single Piston Rear Calipers) 2003 (Quadrasteer; 325Mm Rear Rotors; Extended Cab Pickup; Single Piston Rear Calipers) 2004 (Standard Cab Pickup; Single Piston Rear Calipers) 2004 (Base, Ls, Lt, Wt; Standard Duty; 2 Wheel Steering; Extended Cab Pickup; Single Piston Rear Calipers) 2004-2006 (Hybrid; Single Piston Rear Calipers) Replacement For Gmc: 2003-2005 Safari 1999 Sierra 1500 (With Dual Piston Front Caliper) 2000 Sierra 1500 2001-2004 Sierra 1500 (Single Piston Rear Calipers) 2005 Sierra 1500 (Denali; Exc. Heavy Duty Suspension; Single Piston Rear Calipers) 2006 Sierra 1500 (Denali, Hybrid; Single Piston Rear Calipers) 2000 Yukon (4.8L, 5.3L; Single Piston Rear Calipers) 2001 Yukon (Single Piston Rear Calipers; Rear Brake Type: Disc) 2002 Yukon Xl 1500 (Exc. Limited Slip Axle; Single Piston Rear Calipers)