If you're looking for a massive performance lift for your truck, but want it to still be able to be a daily driver, you've found the right kit. You'll also be able to run much larger tires and wheels (see wheel size tab for more info on commonly used wheel and tire sizes. The 8-10" kit (you will need to add torsion keys part CSK-C13-3 to go from the fixed 8" up to 10" in the front) includes a 1 piece gusseted sub-frame w/ steel full size differential skid plate, fabricated steel / CNC machined front steering knuckles, high strength steering drop center link w/ heim jointed support links to minimize wear of factory idler and pitman arms, differential drop brackets, heavy duty bump stop brackets, extended sway bar end links, brake line drop brackets, CST laser cut torsion drop brackets, all necessary hardware, and front stock shock extensions. Steering stabilizer brackets are built into the kit and CST's stabilizer shock kit CSR-2946 can be purchased as an option. To lift the rear of the truck, this CST Lift Kit includes a fabricated 5" lift blocks with bump stop pads and heavy duty 3/4" u-bolts. An add-a-leaf addition to the leaf pack adds another couple of inches to complete the rear lift at 7.5" of rear lift Extended length rear shocks are required and are INCLUDED at no additional charge. No cutting of the front differential is required or welding of any kind. CST's 8-10" lift kit retains the factory front wheel track width and has zero compatibility issues with the GM Stabilitrak system. The part number for this item is CSK-C3-16-1 and it fits 2011-2017 Chevy Silverado, GMC Sierra (2500HD 3500HD Models). 2015-2017 4WD models should also purchase CST front driveshaft part number CSP-C28-1 (11-16 Models) or CSP-C28-7 (17 Models) Alternate part numbers: CSK-C3-16-1 css-c3-16 csk-c3-16