These heavy duty offset ball joints have a built in 3 degree offset which can be clocked to affect camber, caster, or both. They are ideal for vehicles which cannot be aligned properly with the factory cam bolts due to installation of a lift or levelingkit. As an additional benefit, they also raise the outer end of the upper control arm, which increases clearance between the arm and the droop travel stops on the frame. This restores droop travel on trucks with leveling kits, and eliminates noise vibration harshness caused by arm to frame contact. Note: Due to strength limitations of the factory upper control arm, this ball joint should not be used on trucks with tires larger than 33" unless a "tall knuckle" lift kit is installed. SPC uses hex chromate free finish and offers a 700hr salt spray test for the best corrosion protection available. California Residents WARNINGInstallation InstructionsThis Part Fits: Year Make Model Submodel 2002-2004 Chevrolet Avalanche 2500 Base 2005-2006 Chevrolet Avalanche 2500 LS 2005-2006 Chevrolet Avalanche 2500 LT 2005 Chevrolet Silverado 1500 HD Base 2001-2003,2005 Chevrolet Silverado 1500 HD LS 2001-2003,2005-2006 Chevrolet Silverado 1500 HD LT 1999-2004 Chevrolet Silverado 2500 Base 1999-2004 Chevrolet Silverado 2500 LS 1999-2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2001-2005 Chevrolet Silverado 2500 HD Base 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2010 Chevrolet Silverado 2500 HD LT 2007-2010 Chevrolet Silverado 2500 HD LTZ 2003-2010 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2001-2005 Chevrolet Silverado 3500 Base 2001-2006 Chevrolet Silverado 3500 LS 2001-2006 Chevrolet Silverado 3500 LT 2004,2006 Chevrolet Silverado 3500 WT 2007 Chevrolet Silverado 3500 Classic LS 2007 Chevrolet Silverado 3500 Classic LT 2007 Chevrolet Silverado 3500 Classic WT 2007-2010 Chevrolet Silverado 3500 HD LT 2007-2010 Chevrolet Silverado 3500 HD LTZ 2007-2010 Chevrolet Silverado 3500 HD WT 2000-2001 Chevrolet Suburban 2500 Base 2000-2013 Chevrolet Suburban 2500 LS 2000-2013 Chevrolet Suburban 2500 LT 2007 Chevrolet Suburban 2500 LTZ 2004-2006 GMC Sierra 1500 Denali 2006 GMC Sierra 1500 SL 2004-2006 GMC Sierra 1500 SLE 2004-2006 GMC Sierra 1500 SLT 2001-2003,2005-2006 GMC Sierra 1500 HD SLE 2001-2003,2005-2006 GMC Sierra 1500 HD SLT 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 2002-2005 GMC Sierra 2500 HD Base 2001-2002,2006 GMC Sierra 2500 HD SL 2001-2010 GMC Sierra 2500 HD SLE 2001-2010 GMC Sierra 2500 HD SLT 2003-2010 GMC Sierra 2500 HD WT 2007 GMC Sierra 2500 HD Classic SL 2007 GMC Sierra 2500 HD Classic SLE 2007 GMC Sierra 2500 HD Classic SLT 2007 GMC Sierra 2500 HD Classic WT 2002-2005 GMC Sierra 3500 Base 2001-2002,2006 GMC Sierra 3500 SL 2001-2006 GMC Sierra 3500 SLE 2001-2006 GMC Sierra 3500 SLT 2004-2006 GMC Sierra 3500 WT 2007 GMC Sierra 3500 Classic SL 2007 GMC Sierra 3500 Classic SLE 2007 GMC Sierra 3500 Classic SLT 2007 GMC Sierra 3500 Classic WT 2007-2010 GMC Sierra 3500 HD SLE 2007-2010 GMC Sierra 3500 HD SLT 2007-2010 GMC Sierra 3500 HD WT 2000-2013 GMC Yukon XL 2500 SLE 2000-2013 GMC Yukon XL 2500 SLT 2003-2009 Hummer H2 Base
