Rock Krawler JL35X2PNL-392 3.5 Inch X Factor X2 Pro No Limits Long Arm Suspension System 392

The Rock Krawler JL35X2PNL-392 is the 3.5-inch X Factor X2 Pro "No Limits" Long Arm Suspension System, purpose-built for the Jeep Wrangler JLU 392 platform. Engineered for hardcore rock crawling, this long arm lift system delivers 3.5 inches of lift height over the factory 1-inch ride height, resulting in a net 2.5-inch gain in total lift. The system is specifically tuned for the added mass of the 392 cubic inch V8 engine with heavier-rate, 392-specific Triple Rate Coil springs that ensure a balanced, functional ride both on and off the trail.

Key Features:

• Independent 3-Link Design Front & Rear — X Factor geometry maximizes axle articulation and off-road performance
• X2 Rear Suspension Geometry — Provides adjustable anti-squat with enhanced rear instant center and rear roll center for superior handling dynamics
• "No Limits" Front Sway Bar Links — CNC machined billet aluminum center section with Made-in-USA FK bearing heim joints; fully compatible with the factory Rubicon electronic sway bar disconnect feature for maximum articulation on the rocks
• 392-Specific Triple Rate Coil Springs — Heavier spring rate engineered to support V8 engine weight while delivering ride quality that surpasses factory linear rate springs
• Pro Upper Control Arms — Double adjustable front and rear upper control arms with 14mm hardware, 2-3/8" mounting width, and 1" Pro Krawler joints at each end
• Chromoly Steel Construction — Solid chromoly steel arms built to handle extreme suspension forces
• 4.5" Rear Clearance Gain — Achieved via the X2 axle bracket system for improved ground clearance
• Heat Shield Thermal Barrier — Protects front control arm frame joints, similar to OEM-style thermal protection
• Tire Compatibility — Supports up to 37"/38" tall tires with full OEM fenders (3" bump stop height recommended); up to 40" tall tires with trimmed or high-lined OEM fenders

Installation Notes:

• Requires welding of front and rear long arm mounts to the frame
• Requires removal of OEM frame-side lower and upper front and rear control arm mounts
• Requires removal of OEM axle-side rear lower control arm and track bar mounts
• Requires modification of OEM rear shock mounts and welding of raised rear upper shock mounts
• Requires an aftermarket front axle housing with FAD delete to weld the front upper arm mount
• A new front CV driveshaft is recommended for front shocks with maximum extended length greater than 29"
• Professional alignment by an off-road experienced specialist is strongly recommended after installation

The Rock Krawler X Factor X2 Pro No Limits long arm system is one of the most comprehensive suspension solutions available for the 392-powered JLU Wrangler, combining aggressive off-road capability with thoughtful engineering to keep you connected to the trail — and the road home.