Rock Krawler JL45AXPNL-392CS 4.5 Inch Adventure-X Pro No Limits Long Arm Coilover Suspension System 392

The Rock Krawler JL45AXPNL-392CS is a 4.5-inch Adventure-X Pro "No Limits" Long Arm Coilover Suspension System engineered specifically for the 392 platform. This system represents Rock Krawler's top-tier long arm offering, combining serious off-road capability with refined daily driver performance in one comprehensive, complete kit.

The "PRO" designation means the system is equipped with four billet aluminum CNC-machined, service-free lower control arms in long arm length — delivering maximum strength with zero maintenance requirements. The "No Limits" name comes from the inclusion of specially designed front sway bar links that work with the factory electronic sway bar disconnect feature found on Rubicon models, allowing full articulation at the press of a button. These sway bar links feature factory-sized hardware, a CNC-machined billet aluminum center section, and Made-in-USA FK Bearing heim joints.

The Adventure-X long arm architecture combines a full high-clearance 4-link front suspension with a high-clearance independent 3-link rear suspension for exceptional geometry on and off the trail. The 392-specific Triple Rate coil springs are tuned to a heavier rate to account for the added weight of the 392 cubic inch V8 engine, achieving 4.5 inches of lift over the factory 1-inch lift height for a balanced, functional result.

Key Features:

• 4.5-inch lift height designed specifically for the 392 platform
• 4 billet aluminum CNC-machined, service-free PRO long arm lower control arms
• 392-specific Triple Rate coil springs tuned for the V8 engine weight
• "No Limits" front sway bar links compatible with factory electronic sway bar disconnect
• CNC-machined billet aluminum sway bar link center sections with Made-in-USA FK Bearing heim joints
• High-clearance 4-link front and independent 3-link rear suspension architecture
• Coilover shock configuration for enhanced adjustability and performance
• Correction pads included to reduce factory spring bow
• Track bar geometry corrections included for precise axle centering
• Lifetime limited warranty

Installation of this long arm coilover system requires welding of the front and rear long arm mounts, removal of OEM frame-side control arm mounts, and welding of new coilover mounts at the axle. A new front CV driveshaft is recommended for routine off-road use.