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
1999-2004	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
2001-2007	Chevrolet	Silverado 2500 HD	LT
2007	Chevrolet	Silverado 2500 HD	LTZ
2003-2007	Chevrolet	Silverado 2500 HD	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 HD	LT
2007	Chevrolet	Silverado 3500 HD	LTZ
2007	Chevrolet	Silverado 3500 HD	WT
1999	Ford	F-250	Base
1999	Ford	F-250	Lariat
1999	Ford	F-250	XL
1999	Ford	F-250	XLT
2009	Ford	F-250 Super Duty	Cabela's
2008-2009	Ford	F-250 Super Duty	FX4
2004-2009	Ford	F-250 Super Duty	Harley-Davidson Edition
2004-2009	Ford	F-250 Super Duty	King Ranch
1999-2009	Ford	F-250 Super Duty	Lariat
1999-2009	Ford	F-250 Super Duty	XL
1999-2009	Ford	F-250 Super Duty	XLT
2004-2005	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2005	Ford	F-350 Super Duty	King Ranch
1999-2005	Ford	F-350 Super Duty	Lariat
1999-2005	Ford	F-350 Super Duty	XL
1999-2005	Ford	F-350 Super Duty	XLT