Tuff Country's block and u-bolts kits are an economical solution to raising the rear end of many trucks and SUVs. Lift blocks are inserted between the factory axle and leaf spring to lift the rear end. Each kit includes lift blocks and extended zinc plated u-bolts, custom fit for the application.

This Part Fits:

Year	Make	Model	Submodel
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
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