Skyjacker(R) utilizes Blocks and U-Bolts in its Kits to provide rear lift. The Skyjacker(R) U-Bolts are e-coated for corrosion resistance. These U-Bolts are offered in various shapes and sizes such as square, round, and semi-round in lengths ranging from 1.75 - 19 inches. The Blocks used in Skyjacker(R) Kits are Ductile iron with fixed center pins. They are also tapered to correct pinion angle and prevent driveline vibrations. Available in 1.25, 2, 3.5, 4.5, and 5 inches.

This Part Fits:

Year	Make	Model	Submodel
1999-2005	Chevrolet	Silverado 1500	Base
2004-2006	Chevrolet	Silverado 1500	Hybrid
1999-2006	Chevrolet	Silverado 1500	LS
1999-2006	Chevrolet	Silverado 1500	LT
2002-2004,2006	Chevrolet	Silverado 1500	WT
2004	Chevrolet	Silverado 1500	Z71 Off-Road
2002-2005	GMC	Sierra 1500	Base
2002	GMC	Sierra 1500	HT
2005	GMC	Sierra 1500	Hybrid
1999-2003	GMC	Sierra 1500	SL
1999-2005	GMC	Sierra 1500	SLE
1999-2005	GMC	Sierra 1500	SLT
2002-2005	GMC	Sierra 1500	WT