Softride(R) springs use only American steel and the individual leafs of each spring 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 spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride(R) springs use bolt style spring clips, eliminating friction. Other spring designs use the c in. style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker(R) Softride(R) springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.This Part Fits: Year Make Model Submodel 2004 Chevrolet Colorado Base 2004,2006-2008 Chevrolet Colorado LS 2006-2012 Chevrolet Colorado LT 2004-2005 Chevrolet Colorado Sport 2004-2005 Chevrolet Colorado Sport LS 2006-2012 Chevrolet Colorado WT 2004-2005 Chevrolet Colorado Z71 2004-2005 Chevrolet Colorado Z71 LS 2004-2005 Chevrolet Colorado Z85 2004-2005 Chevrolet Colorado Z85 LS 2004,2006-2008 GMC Canyon SL 2004,2006-2012 GMC Canyon SLE 2006-2012 GMC Canyon SLT 2006-2012 GMC Canyon WT 2004-2005 GMC Canyon Z71 Fleet 2004-2005 GMC Canyon Z71 SL 2004-2005 GMC Canyon Z71 SLE 2004-2005 GMC Canyon Z85 SL 2004-2005 GMC Canyon Z85 SLE 2006 Isuzu i-280 Base 2007 Isuzu i-290 LS 2007-2008 Isuzu i-290 S 2006 Isuzu i-350 Base 2007-2008 Isuzu i-370 LS
