Kit Includes: 2X Front Drilled Brake Rotors - S-55054 2X Rear Drilled Brake Rotors - S-55066 2X Front Ceramic Brake Pads - P-785 2X Rear Ceramic Brake Pads - P-792 24X Chrome Wheel Lug Nuts + 2X Socket Keys - 3809Lchx26 Lug Nut Specifications: Thread Size: 14Mm X 1.5 Overall Height: 2 Inch Diameter: 0.91 Inch Seat Style: Conical Seat - 60 Degree Material: Steel Exterior Finish: Chrome Package Contents: 24Pc Wheel Lug Nuts + 2Pc Key Fitment: **Fits Models W/Single Piston Rear Calipers!!!** **Fits Models W/ 12 Inch (305Mm) Front &Amp; 12.79 Inch (325Mm) Rear Rotors** *Does Not Fit Models With 12.99 Inch (330Mm) Rear Rotors!!!* **6 Lug** Replacement For Chevrolet: 2003-2005 Astro 1999-2000 Silverado 1500 2001 Silverado 1500 (Single Piston Rear Calipers; Rwd; 4Wd - Exc. Limited Slip Rear End) 2002-2003 Silverado 1500 (Single Piston Rear Calipers; 2 Wheel Steering) 2003 Silverado 1500 (Single Piston Rear Calipers; Quadrasteer; 325Mm Rear Rotors; Extended Cab Pickup) 2004 Silverado 1500 (Single Piston Rear Calipers; Standard Cab Pickup) 2004 Silverado 1500 (Single Piston Rear Calipers; Hybrid) 2004 Silverado 1500 (Single Piston Rear Calipers; Base, Ls, Lt, Wt; Standard Duty; 2 Wheel Steering; Extended Cab Pickup) 2005 Silverado 1500 (Hybrid Models; Single Piston Rear Calipers) 2006 Silverado 1500 (Hybrid Models; Extended Cab Pickup; Single Piston Rear Calipers) 2000 Suburban 1500 (Single Piston Rear Calipers) 2001-2002 Suburban 1500 (Single Piston Rear Calipers; Exc. Limited Slip Axle) 2000-2002 Tahoe (4Wd; Except Limited Slip Axle; Rear Brake Type: Disc) Replacement For Gmc: 2003-2005 Safari 2001-2004 Sierra 1500 (Single Piston Rear Calipers) 2005 Sierra 1500 (Single Piston Rear Calipers; Rear Brake Type: Disc; Denali Models) 2006 Sierra 1500 (Single Piston Rear Calipers; Rear Brake Type: Disc; Denali, Hybrid) 2001 Sierra 1500 Hd (Rwd) 2000-2001 Yukon (Single Piston Rear Calipers; Rear Brake Type: Disc) 2002 Yukon Xl 1500 (Single Piston Rear Calipers; Exc. Limited Slip Axle)