Compatible with following Models:
2004-2007 Chevy Silverado 1500 V8-6.0L /V8-5.3L Standard Cab Pickup; Extended Cab Pickup; Gas,Vin(T) or Hybrid, Vin(T);78.0 Bed Length
2004-2007 Chevy Silverado 1500 V8-4.8L Extended Cab Pickup, 78.0 Bed Length
2005-2007 Chevy Silverado 1500 V6-4.3L 78.0 Bed Length
2005-2007 Chevy Silverado 1500 HD V8-6.0L
2004 Chevy Silverado 2500 V8-6.0L 78.0 Bed Length
2004-2007 Chevy Silverado 2500 HD V8-8.1L 78.0 Bed Length/ V8-6.0L
2004-2007 GMC Sierra 1500 V8-5.3L 78.0 Bed Length/ V8-4.8L 78.0 Bed Length
2005-2007 GMC Sierra 1500 V8-6.0L Short Bed;143.5 Wheelbase/ V6-4.3L 78.0 Bed Length/ V8-6.0L 78.0 Bed Length
2004-2007 GMC Sierra 2500 HD V8-8.1L 78.0 Bed Length/ V8-6.0L 78.0 Bed Length