The Rock Krawler JL35X2PNL-4D is the 3.5-inch X Factor X2 PRO "No-Limits" Long-Arm Suspension System engineered for Jeep Wrangler JL Unlimited 4-Door owners who demand maximum articulation, hardcore rock crawling capability, and trail-dominating geometry without sacrificing daily drivability.
X Factor X2 Independent 3-Link Design
At the core of this system is Rock Krawler's proprietary independent 3-link suspension design front and rear, delivering maximum articulation and off-road performance. The double-adjustable front and rear upper control arms upsize factory hardware to 14mm with a 2-3/8" mounting width and 1" Pro Krawler joints at each end. The chromoly solid steel arms are built to carry all suspension forces through the most punishing terrain.
PRO Billet Aluminum Lower Control Arms
The "PRO" designation means this system includes Rock Krawler's PB&J (Pure Beef & Jealousy) billet aluminum lower control arms. Custom machined in-house from solid square billet aluminum stock, these arms are engineered to handle any abuse encountered on or off the trail.
"No-Limits" Sway Bar Link System
The "No-Limits" designation comes from the inclusion of specially designed front sway bar links compatible with the factory electronic sway bar disconnect found on Rubicon models. These links feature factory-sized hardware, a CNC-machined billet aluminum center section, and USA-made FK Bearing heim joints — enabling full articulation at the press of a button.
X2 Rear Suspension Geometry
The rear suspension delivers adjustable anti-squat with enhanced rear instant centers and roll centers for a smooth, stable ride on road and trail alike. High-clearance axle mounts add 4.5 inches of ground clearance under the rear axle compared to stock, while rear upper shock relocation brackets preserve full shock and suspension travel.
Adventure Series Maintenance-Free Joints
Frame-side connections on the lower control arms use Rock Krawler's Adventure Series maintenance-free joints, eliminating grease points while providing excellent vibration absorption and proper joint misalignment during off-road use.
Key Features:
- 3.5-inch lift for Jeep Wrangler JL Unlimited 4-Door
- Independent 3-link design front and rear for maximum articulation
- PRO billet aluminum lower control arms — custom CNC machined in-house
- "No-Limits" sway bar links compatible with Rubicon electronic sway bar disconnect
- Double-adjustable upper control arms with 14mm hardware and 1" Pro Krawler joints
- Chromoly solid steel upper arms for maximum strength
- X2 rear suspension geometry with enhanced instant centers and roll centers
- 4.5" rear axle ground clearance gain from high-clearance axle mounts
- Rear upper shock relocation brackets to maintain full suspension travel
- Adventure Series maintenance-free joints at frame connections — zero grease required
- Designed, tested, and manufactured in the USA
The Rock Krawler JL35X2PNL-4D long arm lift kit delivers the ideal balance of precision geometry correction, trail performance, and street manners for serious Jeep Wrangler enthusiasts ready to push their rig to its limits.