Torsion bar keys are used to set the ride height of the front of the truck and are commonly used in leveling kits, and it is important to set the height appropriately as to leave ample suspension droop travel to maintain a good ride quality.There are several different torsion bar spring rates that GM made and put in these trucks, the rate depending on the model and features of the truck. Some trucks that have a higher spring rate may not need aftermarket torsion bar adjuster keys to obtain the maximum recommended ride height.This kit is Only used in leveling kit applications as well as lifted applications when the higher setting of that particular lift kit range is desired like taking a 4 Inch Cognito lift kit to the 6 Inch setting.

Fitment:
2001 Chevrolet Silverado 2500 HD LS
2001 Chevrolet Silverado 2500 HD LT
2001 Chevrolet Suburban 2500 Base
2001 Chevrolet Suburban 2500 LS
2001 Chevrolet Suburban 2500 LT
2001 GMC Sierra 2500 SL
2001 GMC Sierra 2500 SLE
2001 GMC Sierra 2500 SLT
2001 GMC Sierra 2500 HD SL
2001 GMC Sierra 2500 HD SLE
2001 GMC Sierra 2500 HD SLT
2001 GMC Sierra 3500 SL
2001 GMC Sierra 3500 SLE
2001 GMC Sierra 3500 SLT
2001 GMC Yukon XL 2500 SLE
2001 GMC Yukon XL 2500 SLT
2002 Chevrolet Silverado 2500 HD LS
2002 Chevrolet Silverado 2500 HD LT
2002 Chevrolet Suburban 2500 LS
2002 Chevrolet Suburban 2500 LT
2002 GMC Sierra 2500 SL
2002 GMC Sierra 2500 SLE
2002 GMC Sierra 2500 SLT
2002 GMC Sierra 2500 HD SL
2002 GMC Sierra 2500 HD SLE
2002 GMC Sierra 2500 HD SLT
2002 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLT
2002 GMC Yukon XL 2500 SLE
2002 GMC Yukon XL 2500 SLT
2003 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 2500 HD WT
2003 Chevrolet Suburban 2500 LS
2003 Chevrolet Suburban 2500 LT
2003 GMC Sierra 2500 SLE
2003 GMC Sierra 2500 SLT
2003 GMC Sierra 2500 WT
2003 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD WT
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2003 GMC Yukon XL 2500 SLE
2003 GMC Yukon XL 2500 SLT
2004 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Suburban 2500 LS
2004 Chevrolet Suburban 2500 LT
2004 GMC Sierra 2500 SLE
2004 GMC Sierra 2500 SLT
2004 GMC Sierra 2500 WT
2004 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD WT
2004 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 WT
2004 GMC Yukon XL 2500 SLE
2004 GMC Yukon XL 2500 SLT
2005 Chevrolet Silverado 2500 HD LS
2005 Chevrolet Silverado 2500 HD LT
2005 Chevrolet Silverado 2500 HD WT
2005 Chevrolet Suburban 2500 LS
2005 Chevrolet Suburban 2500 LT
2005 GMC Sierra 2500 HD SLE
2005 GMC Sierra 2500 HD SLT
2005 GMC Sierra 2500 HD WT
2005 GMC Sierra 3500 SLE
2005 GMC Sierra 3500 SLT
2005 GMC Sierra 3500 WT
2005 GMC Yukon XL 2500 SLE
2005 GMC Yukon XL 2500 SLT
2006 Chevrolet Silverado 2500 HD LS
2006 Chevrolet Silverado 2500 HD LT
2006 Chevrolet Silverado 2500 HD WT
2006 Chevrolet Suburban 2500 LS
2006 Chevrolet Suburban 2500 LT
2006 GMC Sierra 2500 HD SL
2006 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SLT
2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2006 GMC Yukon XL 2500 SLE
2006 GMC Yukon XL 2500 SLT
2007 Chevrolet Silverado 2500 HD LT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 3500 HD LT
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2007 Chevrolet Suburban 2500 LS
2007 Chevrolet Suburban 2500 LT
2007 Chevrolet Suburban 2500 LTZ
2007 GMC Sierra 2500 HD SLE
2007 GMC Sierra 2500 HD SLT
2007 GMC Sierra 2500 HD WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2007 GMC Sierra 3500 HD WT
2007 GMC Yukon XL 2500 SLE
2007 GMC Yukon XL 2500 SLT
2008 Chevrolet Silverado 2500 HD LT
2008 Chevrolet Silverado 2500 HD LTZ
2008 Chevrolet Silverado 2500 HD WT
2008 Chevrolet Silverado 3500 HD LT
2008 Chevrolet Silverado 3500 HD LTZ
2008 Chevrolet Silverado 3500 HD WT
2008 Chevrolet Suburban 2500 LS
2008 Chevrolet Suburban 2500 LT
2008 GMC Sierra 2500 HD SLE
2008 GMC Sierra 2500 HD SLT
2008 GMC Sierra 2500 HD WT
2008 GMC Sierra 3500 HD SLE
2008 GMC Sierra 3500 HD SLT
2008 GMC Sierra 3500 HD WT
2008 GMC Yukon XL 2500 SLE
2008 GMC Yukon XL 2500 SLT
2009 Chevrolet Silverado 2500 HD LT
2009 Chevrolet Silverado 2500 HD LTZ
2009 Chevrolet Silverado 2500 HD WT
2009 Chevrolet Silverado 3500 HD LT
2009 Chevrolet Silverado 3500 HD LTZ
2009 Chevrolet Silverado 3500 HD WT
2009 Chevrolet Suburban 2500 LS
2009 Chevrolet Suburban 2500 LT
2009 GMC Sierra 2500 HD SLE
2009 GMC Sierra 2500 HD SLT
2009 GMC Sierra 2500 HD WT
2009 GMC Sierra 3500 HD SLE
2009 GMC Sierra 3500 HD SLT
2009 GMC Sierra 3500 HD WT
2009 GMC Yukon XL 2500 SLE
2009 GMC Yukon XL 2500 SLT
2010 Chevrolet Silverado 2500 HD LT
2010 Chevrolet Silverado 2500 HD LTZ
2010 Chevrolet Silverado 2500 HD WT
2010 Chevrolet Silverado 3500 HD LT
2010 Chevrolet Silverado 3500 HD LTZ
2010 Chevrolet Silverado 3500 HD WT
2010 Chevrolet Suburban 2500 LS
2010 Chevrolet Suburban 2500 LT
2010 GMC Sierra 2500 HD SLE
2010 GMC Sierra 2500 HD SLT
2010 GMC Sierra 2500 HD WT
2010 GMC Sierra 3500 HD SLE
2010 GMC Sierra 3500 HD SLT
2010 GMC Sierra 3500 HD WT
2010 GMC Yukon XL 2500 SLE
2010 GMC Yukon XL 2500 SLT
2011 Chevrolet Suburban 2500 LS
2011 Chevrolet Suburban 2500 LT
2011 GMC Yukon XL 2500 SLE
2011 GMC Yukon XL 2500 SLT
2012 Chevrolet Suburban 2500 LS
2012 Chevrolet Suburban 2500 LT
2012 GMC Yukon XL 2500 SLE
2012 GMC Yukon XL 2500 SLT
2013 Chevrolet Suburban 2500 LS
2013 Chevrolet Suburban 2500 LT
2013 GMC Yukon XL 2500 SLE
2013 GMC Yukon XL 2500 SLT

Vehicle Fitment