The Rock Krawler JL45AX2NL-4TR is a 4.5-inch Adventure-X2 "No Limits" Long Arm Trail Runner suspension system engineered for the 4-door Jeep Wrangler JL. This complete long arm lift kit delivers 4.5 inches of lift while combining the geometry advantages of a full high-clearance 4-link long arm front suspension with a high-clearance independent 3-link rear suspension — the perfect balance of capable off-road performance and comfortable daily driving.
The "No Limits" designation refers to the inclusion of specially designed front sway bar links that allow Rubicon owners to fully utilize the factory electronic sway bar disconnect feature while still achieving maximum articulation on the trail. The Adventure-X2 platform features service-free long arm control arms, eliminating the need for routine greasing.
Trail Runner Coilover Package: This Trail Runner system is equipped with 2.625-inch coilover shocks front and rear for improved damping performance over standard shock configurations, giving you the compliance needed on rough terrain and control on pavement.
Key Features:
- 4.5-inch lift height with long arm geometry for improved suspension travel and articulation
- Full high-clearance 4-link front long arm suspension
- High-clearance independent 3-link rear long arm suspension with X2 geometry
- Enhanced rear instant center and rear roll center for improved handling dynamics
- High clearance rear axle mounts provide 4.5 inches of additional ground clearance under the rear axle versus stock
- Rear upper shock relocation brackets preserve full shock and suspension travel
- 2.625-inch Trail Runner coilovers included front and rear
- "No Limits" front sway bar links compatible with factory Rubicon electronic sway bar disconnect
- Service-free long arm control arms — no greasing required
- Designed and manufactured in the USA
Warranty: Rock Krawler backs all hard parts — including control arms, track bars, and mounting brackets — with an Abuse Proof Lifetime Guarantee: they will be replaced if bent, broken, or damaged in a way that affects function. Joint housings carry a 10-year warranty. Springs and shocks are covered against manufacturer defects.
Installation note: Requires removal of the OEM shock mount from the frame and the OEM shock/spring mount from the axle. Welding of the new coilover mount to the axle is required. Installing limiting straps after setup is recommended to prevent overextension of suspension components.