Rock Krawler JK45AXPLA-4 4.5 Inch Adventure-X Pro Long Arm Suspension Lift Kit

The Rock Krawler JK45AXPLA-4 is a 4.5-inch Adventure-X Pro Long Arm suspension lift system engineered to deliver the ultimate balance between daily street driving and hardcore off-road performance. This complete long arm conversion system pairs a full high clearance 4-link long arm front suspension with a high clearance independent 3-link long arm rear suspension, resulting in a setup built for serious trail use without sacrificing highway manners.

At the heart of this system are four billet 7075 aluminum CNC-machined, service-free lower control arms in long arm length. Each control arm features Rock Krawler's award-winning Adventure Series joint center, which isolates road vibrations similarly to an OEM bushing while providing high misalignment capability. A steel sleeve with an additional Teflon-lined inner sleeve eliminates the chafing, twisting, and deformation common in traditional bushing designs — and means no greasing required for the life of the joints.

Key Features:

• 4.5-inch suspension lift height
• Full high clearance 4-link long arm front suspension
• High clearance independent 3-link long arm rear suspension
• 4x billet 7075 aluminum CNC-machined, maintenance-free lower control arms
• Award-winning Adventure Series joints — service-free with high misalignment
• Weld-on long arm mounting brackets with OEM-style weld scheduling
• Heat Shield thermal barrier products to protect front control arm joints at the frame
• 3.5-inch rear axle ground clearance gain from the X2 axle bracket system
• Adjustable rear anti-squat featuring X2 geometry
• Rear upper shock relocation brackets to preserve full shock and suspension travel
• 1/4-inch thick laser cut steel cross member
• Weld-on raised trackbar mount and Top Mount Pro-X drag link included
• Lifetime warranty coverage

System Includes:

• (2) Front frame-side weld-on long arm mounts
• (1) Weld-on raised trackbar mount
• (1) Top Mount Pro-X drag link
• (2) Heat Shield Products thermal barriers
• (1) 1/4-inch thick laser cut steel cross member
• (2) Front billet 7075 aluminum adjustable lower control arms
• (2) Front adjustable upper control arms

Installation Notes: This system requires welding of the provided long arm mounting brackets, raised trackbar mount, and rear axle truss. Removal of OEM frame-side and axle-side control arm mounts is required. Installing limiting straps after final setup is recommended to prevent over-extension of suspension components. This system allows the rear axle to be repositioned up to 1 inch rearward of stock for improved fitment under aftermarket flat fenders and to accommodate larger tires.