Our all-new 44-30801 8" lift kits with ReadyLIFT SST3000 shocks are a great option for the customer who wants a taller lifted height and the ability to run up to 38" tall tires. The 44-30801 lift kits include laser-cut fabricated heavy-duty steel cross-members new cast iron OE-style knuckles with the perfect geometry built-in torsion arm brackets popular fabricated steel upper control arms with corrected ball joint angles taller fabricated steel rear lift blocks and new forged torsion keys with the proper amount of indexing. . These new torsion bar relocation brackets eliminate the traditional lowering of the torsion bars which can inhibit ground clearance from a lift installation and help to improve the overall driving experience. Additionally each kit includes crucial differential drop brackets and CV axle spacers 12" sway bar end links bump stop extensions OE style cast iron rear lift blocks heavy-duty steel skid plate and finally SST3000 series shocks.; Features & Benefits: Laser cut CNC formed heavy-duty front/rear drop crossmembers. Bolt-on installation well almost. Some slight modifications will be required. OE-style cast iron knuckles have been precisely engineered to provide the ideal geometry to ensure proper alignment and improve the overall driving experience. Increases ground clearance. Includes our new torsion bar relocation brackets that keep the torsion bars in their factory location no need to lower the torsion bars to lift! 6" lift kits - Allows for 37x12.50 on a 9" wide wheel with zero offset. Available with ReadyLIFT SST3000 F/R shocks. Includes important differential drop brackets and CNC-machined billet Aluminum CV axle spacers. NOTE:    Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately. Custom U-bolt length may vary by vehicle application.   If the ReadyLIFT kit's standard U-bolts are too short ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.