Rock Krawler JL45X2PLA-4DTR 4.5 Inch X Factor X2 Pro Trail Runner Long Arm Suspension System

The Rock Krawler JL45X2PLA-4DTR is a 4.5-inch X Factor X2 Pro Trail Runner Long Arm Suspension System engineered for hard-core off-road performance. Designed for the Jeep Wrangler JLU 4-Door Diesel, this coilover-equipped long arm system delivers exceptional articulation, trail capability, and on-road composure in a comprehensive, complete package.

At the core of the X Factor X2 system is an independent 3-link design front and rear, delivering maximum articulation and off-road performance. The proprietary double-adjustable upper control arms upgrade factory hardware to 14mm with a 2-3/8" mounting width and 1" Pro Krawler joints at each end, while the chromoly solid steel arm construction is built to handle the full forces of the suspension under any condition.

The Trail Runner designation means this system includes Rock Krawler's RRD 2.625" Remote Reservoir Coilover shocks up front for an added level of tuneability, enhancing ride quality, handling, and off-road performance. Front coilover travel yields approximately 14.4 inches of front axle travel, while the rear delivers approximately 13.9 inches of rear axle travel.

The X2 rear suspension geometry features adjustable anti-squat with enhanced rear instant centers and roll centers, providing a stable and controlled feel whether navigating rock crawling terrain or cruising at highway speeds. High clearance axle mounts deliver 4.5 inches of ground clearance gain under the rear axle compared to stock, and rear upper shock relocation brackets preserve full suspension travel.

Key Features:

• 4.5-inch lift — X Factor X2 Pro Trail Runner Long Arm System
• Independent 3-link front and rear suspension design for maximum articulation
• Double-adjustable chromoly solid steel upper control arms with 14mm hardware and 1" Pro Krawler joints
• Adventure Series maintenance-free joints at lower control arm frame connections — no greasing required
• RRD 2.625" Remote Reservoir Coilover shocks front — approx. 14.4" front axle travel
• RRD 2.625" Remote Reservoir shocks rear — approx. 13.9" rear axle travel
• X2 rear geometry with adjustable anti-squat, enhanced instant center and roll center tuning
• High clearance rear axle mounts provide 4.5" clearance gain over stock
• Rear upper shock relocation brackets preserve full suspension travel
• Heat shield thermal barrier protects front control arm joints at the frame
• Geometry correction pads and track bar corrections included for precise axle centering
• Specifically engineered for Jeep Wrangler JLU 4-Door Diesel models

The Rock Krawler X Factor X2 Pro Trail Runner Long Arm System is a complete, thoroughly engineered suspension solution for Wrangler owners who demand the best performance on the trail without sacrificing daily drivability.