Bring your GM to new heights with this complete suspension system from Zone! The heart of this Zone Offroad 5" lift kit is a pair of one piece 1/4" steel crossmembers combined with the CNC machined steering knuckles to create OE geometry for a quality ride. Also included is a laser cut differential skid plate, differential support brackets, torsion bar brackets, sway bar links, tapered rear 4.5" lift blocks, stainless steel brake lines and Fox Adventure Series Shocks. This system is designed to level the truck and has zero change to the vehicle's track width allowing for clearance of up to 37" tall tires. No differential trimming required!