Rock Krawler JL45X2PNL-4S1 4.5-Inch X-Factor X2 Pro No Limits Long-Arm Suspension System Stage 1

The Rock Krawler JL45X2PNL-4S1 is a 4.5-inch X-Factor X2 Pro "No Limits" Long-Arm Suspension System – Stage 1, engineered for Jeep Wrangler JL owners who demand maximum off-road articulation and hardcore rock crawling capability without sacrificing on-road ride quality.

X-Factor X2 Long-Arm Architecture:

• Independent 3-link design front and rear for maximum articulation and off-road performance
• Double adjustable front and rear upper control arms upgrading factory hardware to 14mm, 2-3/8" mounting width with 1" Pro Krawler joints at each end
• Chromoly solid steel upper arms designed to handle the full forces of the suspension
• X2 rear suspension geometry with enhanced rear instant centers and roll centers for adjustable anti-squat

"Pro" Billet Aluminum Lower Control Arms:

• CNC-machined in-house from solid square billet aluminum stock
• Engineered to handle extreme abuse on the trail
• "Adventure Series" maintenance-free joints at frame connections to minimize grease points and provide excellent vibration absorption

"No Limits" Sway Bar Link System:

• Purpose-built front sway bar links compatible with the factory electronic sway bar disconnect found on Rubicon models
• CNC machined billet aluminum center section with factory-sized hardware
• Made-in-USA heim joints from FK Bearing

High-Clearance Rear Suspension:

• New high-clearance axle mounts provide 4.5" of added ground clearance under the rear axle versus stock
• Rear upper shock relocation brackets preserve full shock and suspension travel
• Triple-rate coil springs deliver excellent on-road comfort while supporting maximum off-road articulation

Additional System Features:

• Track bar geometry corrections front and rear to properly center axles and maintain on-road handling
• Spring correction pads to reduce factory spring bow
• Stage 1 configuration — a complete, ready-to-install lift kit package

The Rock Krawler X-Factor X2 Pro No Limits system is built to be stable and confident at highway speeds or on the most demanding rock crawling terrain, whether you're running stock drivetrain or pushing higher horsepower through the chassis.