Rock Krawler JL45AX2NL-392 4.5 Inch Adventure-X2 No Limits Long Arm Suspension System 392

The Rock Krawler JL45AX2NL-392 is a 4.5-inch Adventure-X2 "No Limits" Long-Arm Suspension System purpose-built for the Jeep Wrangler JLU 392 platform. Engineered to bridge the gap between daily street driving and hardcore off-road performance, this comprehensive long-arm lift kit delivers exceptional articulation, improved geometry, and a dramatically enhanced ride quality over stock.

Adventure-X2 Long-Arm Architecture:

• Full High-Clearance 4-Link Front Suspension combined with a high-clearance independent 3-link rear suspension for maximum ground clearance and articulation
• Service-Free Joints — no greasing required; Adventure Series maintenance-free joints at frame connections with PRO Krawler Joints at axle connections
• 392-Specific Triple-Rate Coil Springs — tuned with a heavier spring rate to compensate for the additional weight of the 392 cubic inch V8 engine, delivering 4.5 inches of lift over the factory 1-inch ride height
• All four coils engineered with the correct free-length for maximum off-road articulation while staying firmly seated in the coil bucket
• Correction pads included to reduce spring bow inherent in the factory setup
• Front and rear track bar geometry corrections to perfectly center the axles and maintain on-road handling

"No Limits" Sway Bar Links:

• Specifically designed for compatibility with the factory electronic sway bar disconnect feature on Rubicon models
• CNC-machined billet aluminum center section with factory-sized hardware
• Made-in-USA FK Bearing heim joints for durability and full articulation

Installation Notes:

• Requires welding of front and rear long arm mounts to the frame
• 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
• Limiting straps are recommended after final setup to prevent over-extension of suspension components
• Generic front shock length: 18–19" collapsed / 30" maximum extended
• Generic rear shock length: 20–21" collapsed / 32" maximum extended

The Rock Krawler JL45AX2NL-392 is designed to be the foundation for every adventure — whether on the street, towing, or tackling the toughest trails. Manufacturer part number: JL45AX2NL-392.