Rock Krawler RK09211 X-Factor 6" Stretch Long-Arm Suspension Box Kit for Jeep Wrangler JL

The Rock Krawler RK09211 X-Factor 6" Stretch Long-Arm Suspension Kit is a comprehensive long-arm suspension system engineered for Jeep Wrangler JL owners who demand elite off-road performance without sacrificing daily drivability. This system combines a full high clearance independent 3-link front suspension with a high clearance independent 3-link rear suspension for maximum articulation on and off the trail.

At the heart of this system is Rock Krawler's ultra high clearance 3-link rear conversion, which eliminates the natural binding of the stock parallel 4-link (5-link) rear suspension arrangement. The result is ultra-smooth, bind-free suspension motion front and rear, dramatically improving articulation and eliminating the axle jacking that plagues factory setups during hard off-road use.

Key Features:

• 6" Rear Stretch: Repositions the rear axle rearward 6" for an extended wheelbase, improving climbing traction and overall trail capability
• Independent 3-Link Front & Rear: 100% bind-free design delivers maximum articulation while preserving factory-like highway ride quality and handling
• High Clearance Axle Mounts: Ultra high clearance rear axle mounts provide significantly increased ground clearance under the rear axle compared to stock
• Rear Upper Shock Relocation Brackets: Ensures no loss of shock travel or suspension travel during the stretch conversion
• X-Factor Series Control Arms: Adjustable upper and lower control arms with Pro Krawler Joints at axle connections and Adventure Series maintenance-free joints at frame connections
• Precision Geometry: Enhanced rear instant center and rear roll center geometry for superior on-road handling and off-road performance
• Rock Krawler Triple-Rate Coils: Engineered for excellent on-road comfort and proper free-length for maximum off-road articulation
• Track Bar Geometry Corrections: Included front and rear corrections to perfectly center axles with no compromise in on-road handling

Installation Notes:

• Requires welding of rear long arm mounts and raised rear upper shock mounts
• Requires removal of OEM frame-side upper and lower rear control arm mounts
• Requires removal of OEM axle-side rear lower control arm and track bar mounts
• Requires major body work modifications — compatible with the Next Venture Motorsports Rear Stretch Armor Package
• C.V. driveshaft upgrade recommended for front shocks with maximum extended length greater than 29"
• Installation of limiting straps is recommended after full system setup

The Rock Krawler RK09211 X-Factor 6" Stretch system is a professional-grade fabrication project best suited for experienced builders or professional off-road shops. The resulting build delivers an extended wheelbase platform that is capable on the toughest trails while remaining street legal and daily drivable.