Rock Krawler JL45X2PNL-4TR 4.5 Inch X Factor X2 Pro No Limits Long Arm Trail Runner Suspension System

The Rock Krawler JL45X2PNL-4TR is a 4.5-inch X Factor X2 Pro No Limits Long Arm Trail Runner suspension system engineered for Jeep Wrangler JL 4-door owners who demand maximum off-road performance without compromising on-road drivability. This is a complete front and rear long arm coilover suspension lift system built around Rock Krawler's proven X Factor X2 geometry platform.

The "Pro" designation means the lower control arms are Rock Krawler's PB&J billet aluminum CNC-machined units — custom machined in-house from solid square stock billet aluminum bar stock and built to handle extreme trail abuse. The "No Limits" designation signifies the inclusion of specially designed front sway bar links that are compatible with the factory electronic sway bar disconnect system, featuring factory-sized hardware, a CNC-machined billet aluminum center section, and Made-in-USA FK bearing heim joints.

Key Features:

• 4.5-inch lift with front and rear coilover setup for a complete suspension upgrade
• Independent 3-link design front and rear for maximum articulation and off-road performance
• X2 rear suspension geometry with adjustable anti-squat and enhanced rear instant center and roll center tuning
• High clearance axle mounts providing 4.5 inches of additional ground clearance under the rear axle compared to stock
• Double adjustable upper control arms front and rear — upsized to 14mm hardware, 2-3/8-inch mounting width, and 1-inch Pro Krawler joints at each end
• Chromoly solid steel upper arm construction engineered to carry full suspension forces
• Adventure Series maintenance-free joints at the frame connections of the lower control arms to reduce grease points and improve vibration absorption
• Rear upper shock relocation brackets ensure no loss of shock or suspension travel
• Designed and manufactured in the USA

The Trail Runner configuration delivers a high-performance coilover system tuned for both street and extreme off-road use. Whether navigating rock crawling trails or daily driving, the X Factor X2 Pro No Limits system provides a stable, strong, and responsive ride across all conditions.