Skyjacker Suspension TJ40RR1LTK-X 4 Inch Long Arm Lift Kit with ADX 2.0 Remote Reservoir Shocks

The Skyjacker Rock Ready 4-inch Long Arm Suspension Lift System delivers exceptional performance for serious off-road enthusiasts seeking maximum articulation and trail capability. This comprehensive lift system completely re-engineers your suspension geometry through an integrated bolt-on sub-frame assembly that corrects driveline angles while maintaining optimal ground clearance.

Key Features:

• Integrated bolt-on sub-frame assembly corrects driveline geometry and maximizes ground clearance
• Bent high-clearance lower adjustable control arms with Rock Jock 2.5-inch forged Johnny Joints at axle mounts
• Johnny Joints provide over 30 degrees of unrestricted flex movement in any direction
• Upper frame mounts feature heavy-duty OEM-style vulcanized rubber bushings
• Custom-engineered 2-stage dual rate long travel coil springs with progressive spring rates
• First Flex Rate stage delivers comfortable ride with full articulation capability during droop
• Second Ride Rate stage engages under compression for smoother highway performance
• ADX 2.0 Adventure Series aluminum monotube shocks with external remote reservoirs
• Full-displaced valving system optimized for both high-speed and crawling performance
• Internal Floating Piston (IFP) separates pressurized nitrogen gas from oil to prevent cavitation
• Compatible with OEM Electronic Stability Control (ESC) systems

This long arm system provides superior on-highway ride quality compared to short arm lifts while delivering untouchable performance on the trails. The dual-rate coil springs keep tires in contact with terrain during full articulation while maintaining excellent ride comfort. The progressive spring design ensures springs remain seated in upper mounts even at full droop, preventing separation during extreme flex situations.