Rock Krawler JL45X2PNL-392CS 4.5 Inch X Factor X2 Pro No Limits Long Arm Coilover Suspension System

The Rock Krawler 4.5" X-Factor X2 Pro "No Limits" Long-Arm Coilover Suspension System is engineered specifically for the 392 platform, delivering hardcore rock crawling performance with 392-specific valving and coil spring combinations calibrated to handle the added mass of the 4.5L V8 drivetrain. This Comp Stage system delivers an uncompromising blend of on-road stability and trail-dominating capability.

X2 Long-Arm Architecture:

• Independent 3-link design front and rear for maximum articulation and off-road geometry
• Double-adjustable front and rear upper control arms with 14mm upsized hardware, 2-3/8" mounting width, and Pro Krawler joints at each end
• Chromoly solid steel arm construction designed to carry the full forces of the suspension
• X2 rear suspension geometry with enhanced rear instant center(s) and adjustable anti-squat
• High clearance axle mounts provide 4.5" of additional ground clearance under the rear axle versus stock
• Rear upper shock relocation brackets preserve full shock and suspension travel

No Limits Sway Bar System:

• Includes purpose-built front sway bar links compatible with the factory electronic sway bar disconnect feature
• CNC machined billet aluminum center section with factory-sized hardware
• Made in USA heim joints from FK Bearing for long-term durability

Comp Stage 1 Coilover Specifications:

• 13-inch travel front RRD 2.625 RR Coilover shocks yielding 14.4 inches of front axle travel
• 12.5-inch travel rear RRD 2.625 RR shocks yielding 13.9 inches of rear axle travel
• 392-specific valving and coil spring rates tuned for the V8 engine weight
• Coilovers provide additional tuneability for ride quality, handling, and off-road performance

Additional System Features:

• Adventure Series maintenance-free joints at lower control arm frame connections — fewer grease points, excellent vibration isolation
• Heat shield thermal barrier at front control arm frame joints, matching OEM standards
• Track bar geometry corrections front and rear to precisely center the axles and maintain on-road handling
• All Rock Krawler JL systems include correction pads to reduce factory spring bow

Installation Notes:

• Requires removal of OEM shock mount from the frame
• Requires removal of OEM shock and spring mount from the axle
• Requires welding of new coilover mount on the axle
• Limiting straps are recommended after final setup to prevent over-extension of suspension components

Built for Jeep Wrangler JLU 392 owners who demand the most from their suspension, the Rock Krawler X-Factor X2 Pro No Limits Long-Arm Coilover System is a complete, high-performance solution engineered for maximum articulation, precise geometry, and confidence-inspiring performance both on the street and on the most demanding trails.