Skyjacker 1999-2006 GMC Sierra 1500 4 Wheel Drive Add A Leaf

Softride(R) Add-a-leafs use only American steel and are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the leaf. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the leaf. The Skyjacker(R) add-a-leafs are pre-drilled for the center pin. Pin location varies with each application. Most have long tapered ends for a progressive affect and ride comfort.Installation InstructionsThis Part Fits: Year Make Model Submodel 1999-2005 Chevrolet Silverado 1500 Base 2016-2017 Chevrolet Silverado 1500 Custom 2014-2017 Chevrolet Silverado 1500 High Country 2004-2006,2009-2013 Chevrolet Silverado 1500 Hybrid 1999-2006,2008-2013,2015-2017 Chevrolet Silverado 1500 LS 1999-2017 Chevrolet Silverado 1500 LT 2007-2017 Chevrolet Silverado 1500 LTZ 2015-2017 Chevrolet Silverado 1500 SSV 2002-2004,2006-2017 Chevrolet Silverado 1500 WT 2004 Chevrolet Silverado 1500 Z71 Off-Road 2007 Chevrolet Silverado 1500 Classic Hybrid 2007 Chevrolet Silverado 1500 Classic LS 2007 Chevrolet Silverado 1500 Classic LT 2007 Chevrolet Silverado 1500 Classic WT 1999-2004 Chevrolet Silverado 2500 Base 1999-2004 Chevrolet Silverado 2500 LS 1999-2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2002-2005,2014-2017 GMC Sierra 1500 Base 2014-2017 GMC Sierra 1500 Denali 2002 GMC Sierra 1500 HT 2005-2006,2009-2013 GMC Sierra 1500 Hybrid 1999-2003,2006,2008-2013 GMC Sierra 1500 SL 1999-2017 GMC Sierra 1500 SLE 1999-2017 GMC Sierra 1500 SLT 2002-2013 GMC Sierra 1500 WT 2007 GMC Sierra 1500 Classic Hybrid 2007 GMC Sierra 1500 Classic SL 2007 GMC Sierra 1500 Classic SLE 2007 GMC Sierra 1500 Classic SLT 2007 GMC Sierra 1500 Classic WT 2002-2004 GMC Sierra 2500 Base 1999-2002 GMC Sierra 2500 SL 1999-2004 GMC Sierra 2500 SLE 1999-2004 GMC Sierra 2500 SLT 2003-2004 GMC Sierra 2500 WT