Rock Krawler JL35AXPNL-4CS 3.5 Inch Adventure-X PRO No-Limits Long Arm 4-Corner Coilover Suspension System

The Rock Krawler JL35AXPNL-4CS is a 3.5-inch Adventure-X PRO "No-Limits" Long Arm 4-Corner Coilover Suspension System engineered to deliver the ultimate balance between a capable daily driver and a hardcore off-road build. This comprehensive lift kit combines the geometry advantages of a full long arm conversion with the performance tunability of a coilover shock system at all four corners.

The "PRO" designation signifies that this system is equipped with billet aluminum CNC-machined, service-free lower control arms in long arm length — delivering maximum strength and a maintenance-free ownership experience. Adventure-X control arms feature adjustable uppers and lowers with Rock Krawler's Adventure Series joints, offering up to 70 degrees of misalignment to greatly reduce the inherent bind found in factory JL control arms and allowing precision tuning of caster and pinion angle front and rear.

The "No-Limits" name comes from the inclusion of specially designed front sway bar end links that are fully compatible with the factory Rubicon electronic sway bar disconnect feature, allowing Rubicon owners to achieve full off-road articulation at the press of a button. These sway bar links feature a CNC-machined billet aluminum center section and Made in USA heim joints from FK Bearing.

The 4-Corner Coilover (4CS) Trail Runner configuration uses coilover racing shocks at all four corners, maximizing off-road capability while remaining well-tuned for street use. Coilovers add an additional level of tunability, allowing the owner to further dial in ride quality, handling, and off-road performance to their preference.

Key Features:

• 3.5 inches of lift over factory ride height
• Full high-clearance 4-link long arm front suspension combined with a high-clearance independent 3-link long arm rear suspension
• PRO-grade billet aluminum CNC-machined service-free lower control arms in long arm length
• Adventure-X adjustable control arms with up to 70 degrees of misalignment and 100% service-free Adventure Series joints
• "No-Limits" front sway bar end links compatible with factory Rubicon electronic sway bar disconnect
• 4-Corner Coilover shock system with RRD Racing coilovers for maximum tunability and off-road performance
• Triple-rate coil springs engineered for superior on-road comfort and proper free-length for off-road articulation
• Correction pads included to reduce factory spring bow inherent in the JL platform
• Track bar geometry corrections front and rear to properly center axles and preserve on-road handling
• High clearance axle mounts providing improved ground clearance versus stock
• Rear upper shock relocation brackets to preserve full shock and suspension travel

Installation Notes: This long arm system requires welding of the front and rear long arm mounts, removal of OEM frame-side control arm mounts, removal of OEM axle-side rear lower control arm and track bar mounts, and welding of the new coilover mount on the axle. A new front CV driveshaft is recommended for front shocks with a maximum extended length greater than 29 inches. Installing limiting straps is recommended after final setup to prevent over-extension of suspension components.