1999-2006 Chevrolet Silverado 1500 Fleetside, 2007 Chevrolet Silverado 1500 Classic Fleetside, 2001-2003 Chevrolet Silverado 1500 HD Fleetside, 2005-2006 Chevrolet Silverado 1500 HD Fleetside, 2007 Chevrolet Silverado 1500 HD Classic Fleetside, 2001-2004 Chevrolet Silverado 2500 Fleetside, 2001-2006 Chevrolet Silverado 2500 HD Fleetside, 2007 Chevrolet Silverado 2500 HD Classic Fleetside, 2001-2006 Chevrolet Silverado 3500 Fleetside, 2007 Chevrolet Silverado 3500 Classic Fleetside, 1999-2000 GMC Sierra 1500 Fleetside, 2002-2005 GMC Sierra 1500 Base Fleetside, 2002 GMC Sierra 1500 HT Fleetside, 2005-2006 GMC Sierra 1500 Hybrid Fleetside, 2001-2003 GMC Sierra 1500 SL Fleetside, 2006 GMC Sierra 1500 SL Fleetside, 2001-2006 GMC Sierra 1500 SLE Fleetside, 2001-2006 GMC Sierra 1500 SLT Fleetside, 2002-2006 GMC Sierra 1500 WT Fleetside, 2007 GMC Sierra 1500 Classic Hybrid Fleetside, 2007 GMC Sierra 1500 Classic SL Fleetside, 2007 GMC Sierra 1500 Classic SLE Fleetside, 2007 GMC Sierra 1500 Classic SLT Fleetside, 2007 GMC Sierra 1500 Classic WT Fleetside, 2001-2003 GMC Sierra 1500 HD Fleetside, 2005-2006 GMC Sierra 1500 HD Fleetside, 2007 GMC Sierra 1500 HD Classic Fleetside, 2000-2004 GMC Sierra 2500 Fleetside, 2001-2006 GMC Sierra 2500 HD Fleetside, 2007 GMC Sierra 2500 HD Classic Fleetside, 2003-2006 GMC Sierra 3500 Fleetside, 2007 GMC Sierra 3500 Classic Fleetside