Description Includes Pro-Truck Lift Springs and Pro-Truck Sport Shocks. This Part Fits Year Make Model Submodel 1999-2005 Chevrolet Silverado 1500 Base 1999-2006 Chevrolet Silverado 1500 LS 2006 Chevrolet Silverado 1500 LT 2002-2006 Chevrolet Silverado 1500 WT 2002-2005 GMC Sierra 1500 Base 2001 GMC Sierra 1500 C3 2002-2006 GMC Sierra 1500 Denali 2002 GMC Sierra 1500 HT 2005-2006 GMC Sierra 1500 Hybrid 1999-2003,2006 GMC Sierra 1500 SL 1999-2006 GMC Sierra 1500 SLE 1999-2006 GMC Sierra 1500 SLT 2002-2006 GMC Sierra 1500 WT.