Rock Krawler JL45X2PNL-4CS 4.5 Inch X Factor X2 Pro No Limits Long Arm Coil Over Suspension System

The Rock Krawler JL45X2PNL-4CS is a 4.5-inch X Factor X2 Pro "No Limits" Long Arm Coil Over Suspension System built for serious off-road performance. This system is engineered for hardcore rock crawling, combining a front coil over setup with Rock Krawler's proven X Factor long arm geometry to deliver maximum articulation and trail-dominating capability.

The "Pro" designation means this system includes PB&J (Pure Beef & Jealousy) billet aluminum lower control arms — custom machined in-house from solid square stock billet aluminum to handle the most demanding off-road abuse. The "No Limits" designation comes from the inclusion of specially designed front sway bar links that are compatible with the factory electronic sway bar disconnect feature, allowing full articulation on demand.

Key Features:

• 4.5-inch lift with front coil over setup for maximum suspension travel
• Independent 3-link design front and rear for maximum articulation and off-road performance
• Double adjustable upper control arms front and rear, upgrading factory hardware to 14mm with 2-3/8" mounting width and 1" Pro Krawler joints at each end
• Chromoly solid steel arms designed to carry the full forces of the suspension system
• X2 rear suspension geometry provides adjustable anti-squat with enhanced rear instant center and rear roll center tuning
• High clearance axle mounts deliver 4.5" of additional ground clearance under the rear axle compared to stock
• Rear upper shock relocation brackets preserve full shock and suspension travel
• "Adventure Series" maintenance-free joints at frame-side lower control arm connections for reduced grease points, excellent vibration absorption, and proper joint misalignment off-road
• No Limits sway bar links feature a CNC machined billet aluminum center section with Made in USA FK Bearing heim joints — compatible with factory electronic sway bar disconnect
• OEM-style heat shields protect front control arm joints at the frame
• Limited Lifetime Warranty

Installation Notes: This system requires welding of front and rear long arm mounts, removal of OEM frame-side lower and upper control arm mounts, removal of OEM axle-side rear lower control arm and track bar mounts, modification of OEM rear shock mounts, and welding of raised rear upper shock mounts. A front CV driveshaft upgrade is recommended for front shocks with maximum extended length greater than 29 inches. Installation of limiting straps is recommended after final setup.

The Rock Krawler X Factor X2 Pro No Limits Long Arm Coil Over System delivers the geometry, strength, and hardware needed to perform confidently on the street, on the trail, or hauling a load — making it the ultimate suspension upgrade for dedicated off-road builds.