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
2015-2018	Chevrolet	Silverado 2500 HD	High Country
2011-2018	Chevrolet	Silverado 2500 HD	LT
2011-2018	Chevrolet	Silverado 2500 HD	LTZ
2011-2018	Chevrolet	Silverado 2500 HD	WT
2015-2018	Chevrolet	Silverado 3500 HD	High Country
2011-2018	Chevrolet	Silverado 3500 HD	LT
2011-2018	Chevrolet	Silverado 3500 HD	LTZ
2011-2018	Chevrolet	Silverado 3500 HD	WT
2015-2018	GMC	Sierra 2500 HD	Base
2011-2018	GMC	Sierra 2500 HD	Denali
2011-2018	GMC	Sierra 2500 HD	SLE
2011-2018	GMC	Sierra 2500 HD	SLT
2011-2014	GMC	Sierra 2500 HD	WT
2015-2018	GMC	Sierra 3500 HD	Base
2011-2018	GMC	Sierra 3500 HD	Denali
2011-2018	GMC	Sierra 3500 HD	SLE
2011-2018	GMC	Sierra 3500 HD	SLT
2011-2014	GMC	Sierra 3500 HD	WT