Rock Krawler TJX2LA-UPG X-Factor X2 Flat Belly Long Arm Upgrade

The Rock Krawler X-Factor X2 Flat Belly Long Arm Upgrade (TJX2LA-UPG) is a next-generation suspension system engineered for Jeep Wrangler TJ and LJ platforms. Building on Rock Krawler's legendary X-Factor Long Arm lineage — the industry's first independent 3-link front and triangulated 4-link rear suspension design — the X2 takes that proven geometry further with enhanced double triangulation at the rear for improved stability and superior off-road articulation.

What truly sets the X2 apart is its full flat belly design: all arms tuck up right inside the frame rail, maximizing ground clearance and protecting critical suspension components from trail obstacles. This is the industry's only full flat belly long arm system of its kind.

Key Features:

• Independent 3-Link Front / Double-Triangulated 4-Link Rear — evolved X2 geometry delivers superior axle control, crossover angles, and on-road stability
• Full Flat Belly Design — all control arms tuck inside the frame for maximum underbody clearance
• Adventure Series Joints on the frame side of lower control arms for improved ride quality and reduced maintenance requirements
• Pro-X Krawler Joints constructed from one-piece BASF thermo-elastomer material, providing 95 degrees of misalignment or more on every control arm in the system
• OEM Axle Compatible — designed for stock axles and OEM axle control arm mounting widths (Dana 30/44)
• Lifetime Warranty on all hard parts

The X-Factor X2 system delivers exceptional improvements in crossover angles, ground clearance, ride quality, and tuned suspension performance — whether navigating technical rock crawling trails or daily driving on the street.