Raise your Super Duty's off-road abilities. Lift your Super Duty to a smooth riding level of performance. With Skyjacker's 2-2.5 inch lift kit, you up the front and rear to a more level stance. Softride(R) 2-Stage Variable Rate coil springs provide front lift and a full-length Softride(R) add-a-leaf raises the rear. With room to run 33-inch tires, you will gain ground clearance with a smooth ready-for-action stance. Specifically engineered for the Super Duty F250s and F350 4WD with Diesel motors, these 2-Stage Variable Rate Springs deliver a smooth controlled comfortable ride. First Flex Rate stage delivers a comfortable ride with the ability to flexexpand during full articulation. Second Ride Rate stage only engages after compression past Flex Rate: resulting in a smoother ride. Skyjacker Softride(R) Technology also enhances every single aspect of the rear add-a-leaf spring performance. Rear add-a-leaf upgrades and adds lift with a constant spring rate and consistent support. Shocks are a key link in-between the chassis and your suspension. Skyjacker ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks deliver modern technology in the design with an innovative off-road race-inspired full-displaced valving system. From higher speeds to a highway crawl, ADX 2.0 work. The external remote reservoir separates the nitrogen gas from the oil with an Internal Floating Piston (IFP). The IFP prevents the gas and oil from mixing or foaming (cavitation). Front & rear damper capacity enhanced with ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. ADX 2.0 has a race-inspired full-displaced valving system. Nitrogen charged with Internal Floating Piston Technology = Quickest Shock Reaction Time Ever. Straightforward installation with step-by-step guide.