2007-2009 Chevrolet Silverado 1500 Extended Cab Pickup 78.7 Bed; 1999-2005 Chevrolet Silverado 1500 Base Extended Cab Pickup 78.0 Bed; 2004-2006 Chevrolet Silverado 1500 Hybrid Extended Cab Pickup 78.0 Bed; 1999-2006 Chevrolet Silverado 1500 LS Extended Cab Pickup 78.0 Bed; 2010-2013 Chevrolet Silverado 1500 LS Extended Cab Pickup 78.9 Bed; 1999-2006 Chevrolet Silverado 1500 LT Extended Cab Pickup 78.0 Bed; 2008-2009 Chevrolet Silverado 1500 LT Extended Cab Pickup 78.7 Bed; 2010-2013 Chevrolet Silverado 1500 LT Extended Cab Pickup 78.9 Bed; 2008-2009 Chevrolet Silverado 1500 LTZ Extended Cab Pickup 78.7 Bed; 2010-2013 Chevrolet Silverado 1500 LTZ Extended Cab Pickup 78.9 Bed; 2003-2006 Chevrolet Silverado 1500 SS Extended Cab Pickup 78.0 Bed; 2003-2004 Chevrolet Silverado 1500 WT Extended Cab Pickup 78.0 Bed; 2006 Chevrolet Silverado 1500 WT Extended Cab Pickup 78.0 Bed; 2008-2009 Chevrolet Silverado 1500 WT Extended Cab Pickup 78.7 Bed; 2010-2013 Chevrolet Silverado 1500 WT Extended Cab Pickup 78.9 Bed; 2004 Chevrolet Silverado 1500 Z71 Extended Cab Pickup 78.0 Bed; 2007 Chevrolet Silverado 1500 Classic Hybrid Extended Cab Pickup 78.0 Bed; 2007 Chevrolet Silverado 1500 Classic LS Extended Cab Pickup 78.0 Bed; 2007 Chevrolet Silverado 1500 Classic LT Extended Cab Pickup 78.0 Bed; 2007 Chevrolet Silverado 1500 Classic SS Extended Cab Pickup 78.0 Bed; 2007 Chevrolet Silverado 1500 Classic WT Extended Cab Pickup 78.0 Bed; 1999-2004 Chevrolet Silverado 2500 Base Extended Cab Pickup 78.0 Bed; 1999-2004 Chevrolet Silverado 2500 LS Extended Cab Pickup 78.0 Bed; 1999-2004 Chevrolet Silverado 2500 LT Extended Cab Pickup 78.0 Bed; 2004 Chevrolet Silverado 2500 WT Extended Cab Pickup 78.0 Bed; 2001-2006 Chevrolet Silverado 2500 HD Extended Cab Pickup 78.0 Bed; 2001-2005 Chevrolet Silverado 2500 HD Base Extended Cab Pickup 78.0 Bed; 2001-2005 Chevrolet Silverado 2500 HD LS Extended Cab Pickup 78.0 Bed ..See Application Guide for Additional Fitments