The Rock Krawler JL35AX2NL-392CS is a 3.5-inch Adventure-X2 "No Limits" Long-Arm Coilover Suspension System purpose-built for the Jeep Wrangler JL 392 platform. Engineered as the ultimate balance between daily driver comfort and hardcore off-road performance, this complete coilover lift system delivers exceptional articulation, precise geometry correction, and tuned spring rates specifically matched to the weight of the 392 cubic inch V8 engine.
The Adventure-X2 architecture combines a full high-clearance 4-link long-arm front suspension with a high-clearance independent 3-link rear long-arm suspension for maximum axle travel and trail dominance. The rear system features X2 rear suspension geometry with enhanced rear instant center(s) and rear roll center(s) for improved handling dynamics both on-road and off.
The "No Limits" designation refers to the inclusion of Rock Krawler's signature front sway bar end links, engineered specifically for use with the factory Rubicon electronic sway bar disconnect feature — allowing full, bind-free suspension articulation at the push of a button.
Powering the ride are 392-specific valved coilovers up front, tuned with a heavier spring rate to account for the added weight of the V8 engine. This delivers 3.5 inches of lift over the factory 1-inch Rubicon ride height, resulting in a balanced, functional lift with no compromise in on-road handling. All Rock Krawler JL systems include spring bow correction pads and front and rear track bar geometry corrections to keep axles perfectly centered.
Key Features:
- 3.5-inch lift height (measured over factory 1-inch Rubicon ride height)
- 392-specific front coilover valving and spring rate tuning for the V8 platform
- Full high-clearance 4-link long-arm front suspension
- High-clearance independent 3-link long-arm rear suspension
- X2 rear suspension geometry with enhanced rear instant center and roll center
- 4.5 inches of additional rear ground clearance from the X2 axle bracket system
- "No Limits" front sway bar end links compatible with factory Rubicon e-disconnect
- Triple-rate coil springs for superior on-road comfort and off-road articulation
- Spring bow correction pads included
- Front and rear track bar geometry correction brackets included
- Coilover system adds tuneability for ride height, handling, and performance
Installation Notes: This long-arm system requires welding of front and rear long-arm mounts, removal of OEM frame-side control arm mounts, and modification of OEM rear shock mounts. A new front CV driveshaft is recommended for front shocks with a maximum extended length greater than 29 inches. Limiting straps are recommended to prevent over-extension after final setup. Professional installation is strongly advised.