Rock Krawler JL45X2LA-4D 4.5 Inch X Factor X2 Long Arm Suspension Lift Kit Diesel 4-Door

The Rock Krawler JL45X2LA-4D is a complete 4.5-inch front and rear long arm suspension lift kit engineered specifically for diesel-powered 2018 and newer Jeep Wrangler JL 4-Door (Unlimited) models. Designed for serious off-road performance, the X Factor X2 system delivers maximum articulation and trail capability through an advanced independent 3-link suspension design front and rear.

The rear suspension utilizes Rock Krawler's proven independent 3-link conversion with X2 rear suspension geometry. New high clearance axle mounts deliver 4.5 inches of added ground clearance under the rear axle compared to stock, while rear upper shock relocation brackets ensure no loss of shock travel during the conversion. The front and rear 3-link geometry works in concert with the high clearance long arm configuration to produce superior flex and stability on the rocks.

Rock Krawler incorporates OEM-style Heat Shield thermal barrier products to protect the front control arm joints at the frame — the same approach used by factory engineers. All lift heights are based on Rubicon models in a standard build configuration (front bumper and winch, rear bumper, and full-size spare). A professional alignment by an off-road-experienced specialist is strongly recommended following installation.

Key Features:

• 4.5-inch lift height (front and rear)
• Independent 3-link suspension design front and rear for maximum articulation
• X2 rear suspension geometry for optimized rear instant center and roll center
• High clearance axle mounts — 4.5 inches of additional rear axle ground clearance vs. stock
• Rear upper shock relocation brackets — preserves full shock travel
• OEM-style heat shield thermal barriers on front control arm frame joints
• Specifically engineered for diesel-powered JL Wrangler 4-Door models
• Designed and manufactured in the USA by Rock Krawler Suspension

Rock Krawler Suspension designs and manufactures all of their Jeep suspension products in the United States, applying lessons learned from custom one-off Jeep builds directly into their production systems. The X Factor X2 Long Arm system is the result of decades of real-world trail testing and engineering refinement, making it one of the most capable long arm systems available for the JL Wrangler platform.