Rock Krawler JK45AXPLA-2 4.5-Inch Adventure-X PRO Long-Arm Suspension Lift Kit 2-Door

The Rock Krawler JK45AXPLA-2 is a 4.5-inch Adventure-X PRO Long-Arm Suspension System engineered for the 2-Door Jeep Wrangler JK. This complete lift kit delivers an exceptional balance between daily-driver comfort and hardcore off-road capability, giving Wrangler owners a system built to perform on city streets and challenging trails alike.

Adventure-X2 Long-Arm Architecture:

The system pairs a full high-clearance 4-link long-arm front suspension with a high-clearance independent 3-link long-arm rear suspension. Enhanced rear instant centers and rear roll centers produce some of the smoothest ride characteristics available in a long-arm 3-link design. High-clearance axle mounts add 3.5 inches of ground clearance under the rear axle versus stock, while rear upper shock relocation brackets preserve maximum suspension travel.

PRO-Grade, Maintenance-Free Control Arms:

The "PRO" designation means the system is equipped with 4 billet 7075 aluminum CNC-machined, service-free lower control arms in long-arm length — machined from 2" x 3" billet stock for maximum strength. Each arm features Rock Krawler's proprietary Adventure Series joint center, which isolates road vibrations at an OEM-bushing equivalent level while offering high misalignment capability. A steel sleeve passes through the joint and rotates freely on a Teflon-lined inner sleeve, eliminating chafing, twisting, or bushing deformation over time. No greasing required.

Key System Features:

• 4.5-inch suspension lift (based on Rubicon model, standard build)
• Full high-clearance 4-link long-arm front suspension
• High-clearance independent 3-link long-arm rear suspension
• 4 billet 7075 aluminum CNC-machined service-free lower control arms
• Adventure Series maintenance-free joint centers in every control arm
• Weld-on long-arm mounting brackets with OEM-style weld scheduling
• Weld-on raised trackbar mount included
• Top-mount Pro-X drag link
• Heat Shield Products thermal barriers to protect front control arm joints at the frame
• 1/4-inch thick laser-cut steel crossmember
• 3.5-inch rear ground clearance gain from X2 axle bracket system
• Adjustable rear anti-squat with X2 geometry
• Rear upper shock relocation brackets to retain full shock travel
• Lifetime warranty coverage

Tire & Wheel Compatibility Notes:

• Full OEM fenders: fits 33" or 35" tall tires
• Flat fenders: fits up to 37" tall tires
• 4.5" backspacing recommended for 33"–35" tires
• 3.5" backspacing recommended for 37" tires

A professional alignment by a specialist with off-road experience is recommended after installation. Requires removal of OEM frame-side front and rear lower and upper control arm mounts. This kit is designed specifically for the 2-Door Jeep Wrangler JK.