TheÂ CST 8"-10" Stage 2 Lift Kit With Rear Leaf Springs CSK-C3-16-2 provides a superior fit, function and finish in your 2011-2019 GM 2500HD 4WD Pickup. Improved ride quality, O.E. steering geometry, O.E. CV angles, O.E. track-width, thats just a few of the many reasons CST is known as the 2500HD suspension guys. You could also say they paved the way for sub-frame style lift kits, twenty years ago and long before the current trend. Fifteen years later, like the 2500HD CST lift kits are still evolving and still continue to uphold their reputation! The CSK-C3-16-2 kit includes front & rear lift components for a level stance at 8 inches of lift. *SHOCKS SOLD SEPARATELY* CST has combined their experience in off-road racing with trophy truck quality engineering to ensure that your suspension will have increased strength, performance, overall build integrity and perform better than stock. Throughout the initial design and R&D process CST made sure to retain the factory O.E. suspension geometry and design attributes! The Stage 2 8-10" adjustable kit for the front end includes CST's one-piece gusseted sub-frame with a steel full size differential skid plate, fabricated steel, CNC machined front steering knuckles, high strength steering drop center-link with heim jointed support links to minimize wear of the factory idler and pitman arms, differential drop brackets, heavy duty bump stop brackets, extended sway bar end links, steel braided D.O.T. approved brake lines & drop brackets, CST laser cut torsion x-member drop brackets and all necessary hardware. This kit also includes a pair of soft-ride rear leaf springs with new u-bolt spring plates, 1 inch rear blocks and zinc plated u-bolts for 7.5 inches of lift. Shocks are sold separately and not included with this kit. Steering stabilizer brackets are built into the kit and the stabilizer shock kit can be purchased as an upgrade option. No cutting of the front differential is required or welding of any kind. The 8-10" lift kit retains the factory front wheel track width and has zero issues with the GM Stabilitrak system. All fabricated parts are covered in a high-quality two-stage gloss black powder coat finish.Â Wheel & Tire Guidelines:Â Most factory O.E. wheels and tires will work with the lift kit installed. Wheels For Use With Oversized Tires: - 17 x 8" or 9" w/ 5 1/4" BSÂ - 18 x 9" w/ 5 1/4" BSÂ - 20 x 9" or 10" w/ 5 3/4" BSÂ (some higher offset wheels may work....test fitment required)Â Tire Sizes For Use On 20" factory O.E. or aftermarket wheelsÂ - 37 x 12.50 - 38 x 13.50 or 14.50 (minor trimming required - must be set to 10" of lift) Features:Â 8"-10" Adjustable Front Lift Height (Additional Components Required) Improved Ground ClearanceÂ Proudly Made In the USAÂ Superior Quality, Ride, Fit & FinishÂ Constructed Of 1/4" Or Thicker Steel For Extreme StrengthÂ Notes - Please Read For Additional Components Required: CSK-C13-3 CST Torsion Keys required for 9-10" lift, to clear 38" tires.Â Factory 18" Spare can be used.Â 17" wheels must have no more than 5-1/4" backspacing Some models need additional rear lift components for truck to be completely level. Front driveshaft recommended for 2011-2014 models, and required on all 2015-2016 models equipped with 8-10" lift.Â If you want to maintain factory / OE load rating, use blocks in the rear.Â Trucks with 2-piece rear driveshaft require carrier bearing spacer (sold separately, see below) Soft-ride leaf springs are not for towing.Â This kit is customizable based on the components you choose to add. Please see related items below for more details.Â 3500HD Owners: This kit was designed and tested for the 2500HD trucks. It can be used on 3500HD and 3500HD Dually if the purchaser / installer is able to provide custom u-bolts for their application. Due to the many different spring and axle configurations, u-bolts are not included or offered for the 3500HD models. Neither XDP or CST offer u-bolts for these applications. You must be able to source them locally. Additional fabrication such as a Custom carrier bearing spacer may be required as well. Â Truck Freight Item: Allow 1-2 Weeks for delivery. Truck freight charges apply.