Rock Krawler JL35AX2NL-4DCS 3.5 Inch Adventure-X2 No-Limits Long Arm Coil Over Suspension System

The Rock Krawler JL35AX2NL-4DCS is a 3.5-inch Adventure-X2 "No-Limits" Long Arm Coil Over Suspension System engineered specifically for the 4-door Jeep Wrangler JL Diesel. Designed to bridge the gap between a capable daily driver and a hard-core off-road machine, this comprehensive long arm system delivers exceptional articulation, improved geometry, and a significantly enhanced ride quality over the factory setup.

The "No-Limits" designation reflects the inclusion of specially engineered front sway bar links that are fully compatible with the factory electronic sway bar disconnect feature found on Rubicon models. These links feature factory-sized hardware, a CNC-machined billet aluminum center section, and Made-in-USA FK Bearing heim joints — just press the button and hit the rocks.

The Adventure-X2 architecture combines a full high-clearance 4-link long arm front suspension with a high-clearance independent 3-link rear suspension, delivering superior instant center and roll center geometry for both on-road composure and off-road dominance. The service-free Adventure Series joints eliminate the need for greasing throughout the life of the system.

Triple-Rate Coil Springs are engineered specifically for the added weight of the diesel powertrain. All four coils work in concert to provide on-road comfort that surpasses OEM linear-rate springs, while the proper free-length design keeps springs firmly seated in the coil bucket during aggressive off-road articulation.

Key Features:

• 3.5-inch lift height designed for 4-door JL Diesel platform
• Full high-clearance 4-link long arm front suspension
• High-clearance independent 3-link rear long arm suspension
• "No-Limits" CNC billet aluminum sway bar links with FK Bearing USA-made heim joints
• Compatible with factory Rubicon electronic sway bar disconnect
• Diesel-specific Triple-Rate coil springs for proper weight management
• 100% service-free Adventure Series joints — no greasing required
• Includes front and rear track bar geometry correction pads
• Correction pads reduce factory spring bow
• Coil Over front shock configuration for maximum suspension travel
• Lifetime manufacturer warranty

Important Installation Notes:

• Requires welding of the front and rear long arm mounts
• Requires removal of OEM frame-side lower and upper front and rear control arm mounts
• Requires removal of OEM axle-side rear lower control arm and track bar mounts
• Requires modification of OEM rear shock mounts and welding of raised rear upper shock mounts
• A new front CV driveshaft is recommended for front shocks with a maximum extended length greater than 29 inches
• Installation of limiting straps is recommended after final setup