The Skyjacker 3"-3.5" lift kit for the Chevy Silverado and GMC Sierra maintains the factory comfortable ride and structural integrity of the stock drive train. The kit includes front adjustable struts and rear block kit. The extra strong CNC machined knuckles are also at the heart of this design. The heavy-duty bracketry, crossmember, and other components have the strength and durability you expect from Skyjacker. This kit works with Stabilitrak. Rear shocks sold separately.