Skyjacker® utilizes Blocks and U-Bolts in its Kits to provide rear lift. The Skyjacker® 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® 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