Rock Krawler JL45AX2NL-4D 4.5 Inch Adventure-X2 No Limits Long Arm Suspension System 4-Door

The Rock Krawler JL45AX2NL-4D is a 4.5-inch Adventure-X2 "No Limits" Long Arm Suspension System engineered for the Jeep Wrangler JL 4-Door (Unlimited). Designed to strike the ideal balance between daily drivability and hardcore off-road performance, this complete long arm lift kit delivers a significant upgrade over factory suspension geometry in both on-road comfort and trail capability.

Adventure-X2 Long Arm Architecture:

• Full high clearance 4-link long arm front suspension paired with a high clearance independent 3-link rear long arm suspension for maximum articulation and off-road performance
• X2 rear suspension geometry featuring enhanced rear instant center(s) and rear roll center(s) for the smoothest-riding 3-link suspension available
• High clearance axle mounts provide 4.5 inches of additional ground clearance under the rear axle compared to stock
• Rear upper shock relocation brackets ensure no loss of shock or suspension travel after installation
• Adjustable anti-squat tuning capability via the X2 rear suspension geometry

"No Limits" Sway Bar Link System:

• Includes Rock Krawler's signature No Limits front sway bar links, purpose-built to work with the factory electronic sway bar disconnect feature found on Rubicon models
• Sway bar links feature a CNC machined billet aluminum center section and Made-in-USA heim joints from FK Bearing
• Factory-sized hardware for a clean, OEM-style fitment

Adventure Series Joints & Triple-Rate Coils:

• 100% service-free Adventure Series joints — engineered so the sleeve acts as the buffer between bracket clamping force, eliminating bushing compression and grease requirements
• Rock Krawler's industry-leading triple-rate coil springs deliver 4.5 inches of lift with improved on-road ride quality over factory linear-rate springs
• Coil springs are built with the proper free-length for off-road articulation and stay firmly seated in the coil bucket
• Includes spring correction seats front and rear to reduce factory spring bow and prolong coil life
• Front and rear track bar geometry correction components included to properly center axles and maintain on-road handling

Installation Notes:

• Requires welding of front and rear long arm frame-side mounts
• Requires removal of OEM frame-side lower front and rear control arm mounts
• Requires removal of OEM frame-side front and rear upper control arm mounts
• Requires removal of OEM axle-side rear lower control arm and track bar mounts
• Requires modifying OEM rear shock mounts and welding of raised rear upper shock mounts
• Recommend installing limiting straps to avoid over-extension of suspension components
• Recommend a new front CV driveshaft for use with shocks exceeding 29" maximum extended length

The Rock Krawler JL45AX2NL-4D long arm suspension system is designed and manufactured in the USA, providing a comprehensive solution for Wrangler JL owners who demand the best in geometry, articulation, and trail-proven durability.