Skyjacker D400CAK-X 4 In. Suspension Lift Kit with ADX 2.0 Remote Reservoir Shocks

The Skyjacker D400CAK-X is a 4-inch suspension lift kit engineered for 3/4-ton and 1-ton Dodge trucks, pairing Skyjacker's proven Softride® leaf spring technology with the performance-grade ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. This kit delivers improved ground clearance, enhanced off-road capability, and a refined ride quality without sacrificing day-to-day drivability.

The front lift is achieved through Skyjacker Softride® replacement leaf springs — individually shot-peened with hard steel pellets to maximize fatigue resistance and longevity. Tapered leaf ends distribute load more evenly and increase flex, while Teflon® wear pads between leaves and bolt-style spring clips eliminate friction and binding. The kit includes a front U-bolt kit and polyurethane spring eye bushings with replacement sleeves. The rear is lifted using a high-quality add-a-leaf kit that supplements the OEM rear leaf springs.

ADX 2.0 Remote Reservoir Shock Features:

• Adventure Series Aluminum Monotube Construction — enhances both front and rear damping performance
• Off-road race-inspired full-displaced valving system — engineered for higher-speed applications while remaining responsive at low speeds
• External remote reservoir separates pressurized nitrogen gas from shock oil via an Internal Floating Piston (IFP)
• IFP Technology prevents gas/oil mixing and cavitation (foaming), ensuring consistent, rapid shock reaction at all speeds
• Application-specific valving and stroke tuned to this exact lift height and platform

Kit Highlights:

• 4-inch front suspension lift height
• Softride® front replacement leaf springs with shot-peened finish
• Teflon® wear pads and bolt-style spring clips for friction-free operation
• Polyurethane spring eye bushings with replacement sleeves
• Front U-bolt kit included
• Rear add-a-leaf kit works with factory OEM rear leaf springs
• ADX 2.0 remote reservoir monotube shocks included (front and rear)

Built on Skyjacker's 50+ years of suspension engineering expertise, the D400CAK-X is a complete lift solution that upgrades ride height, off-road performance, and shock damping in a single kit.