The Rock Krawler Suspension JL 4.5 inch Adventure X "No-Limits" Mid-Arm System is specifically designed for Rubicon owners who want a complete system, bolt-in installation, and exceptional articulation for their Jeep Wrangler JL 4-door. This comprehensive coil over suspension system delivers proven durability and off-road performance for both street and trail use.
Adventure X Control Arm System:
The Adventure X designation comes from the inclusion of 8 adjustable control arms with 100% service-free Adventure Series joints installed, featuring adjustable upper and lower control arms that offer a total of 70 degrees of misalignment at both frame and axle connections. This design greatly reduces the inherent bind found in factory JL control arms and allows precision tuning of caster and pinion angles front and rear.
No-Limits Sway Bar Integration:
The "No-Limits" designation comes from the inclusion of front sway bar links specifically designed for use with the factory electronic sway bar disconnect feature found standard in Rubicon Wranglers, featuring factory-sized hardware, CNC machined billet aluminum center sections, and Made in USA heim joints from FK bearing.
Triple Rate Coil System:
The system features triple rate coils that work together to achieve excellent on-road comfort superior to OEM linear rate springs, with proper free-length for off-road articulation that stays firmly seated in the coil bucket and provides controlled reaction to bumps, rocks, sand, and mud.
Coil Over Configuration:
The 4DCS variant includes Rock Krawler's 2.625-inch RRD coil over shock assemblies with remote reservoirs, providing exceptional adjustability and performance. The coil over setup requires welding of axle-side mounts for proper installation.
Complete System Includes:
- Front and rear coil over shock assemblies with remote reservoirs
- 8 adjustable control arms with service-free Adventure Series joints
- Triple rate coil springs (all 4 corners)
- No-Limits electronic sway bar disconnect-compatible links
- Front and rear track bar geometry correction components
- Spring bow correction pads
- Complete hardware and detailed installation instructions
Installation Notes:
This system is designed for Jeep Wrangler JL 4-door Rubicon models with gas engines. Lift heights are based on standard builds with front bumper, winch, rear bumper, and full-size spare. A front CV driveshaft is recommended for routine off-road use. Coil over installation requires welding of axle-side mounts and removal of OEM shock mounts.