Rock Krawler JL45X2PNL-4D 4.5 Inch X Factor X2 PRO No Limits Long Arm Suspension Lift Kit

The Rock Krawler JL45X2PNL-4D is the 4.5-inch X Factor X2 PRO "No Limits" Long Arm Suspension System engineered for Wrangler JL 4-Door owners who demand the ultimate in hard core rock crawling performance. This complete front and rear lift kit combines Rock Krawler's most advanced long arm geometry with PRO-level billet aluminum components and the legendary No Limits sway bar link system.

X Factor X2 Long Arm Architecture

• Independent 3-link design front and rear for maximum articulation and off-road performance
• X2 rear suspension geometry delivers adjustable anti-squat with enhanced rear instant center(s) and rear roll center(s)
• Double-adjustable front and rear upper control arms upsize factory hardware to 14mm, 2-3/8" mounting width with 1" Pro Krawler joints at each end
• Upper control arm bodies are constructed from chromoly solid steel to handle maximum suspension forces
• Lower control arms feature Rock Krawler's "PB&J" billet aluminum construction — custom machined in-house from solid square billet stock for unmatched durability

No Limits Sway Bar System

• Proprietary No Limits front sway bar links designed specifically for the factory electronic sway bar disconnect found on Rubicon models
• Links feature factory-sized hardware, a CNC machined billet aluminum center section, and Made-in-USA FK Bearing heim joints
• Retain full Rubicon sway bar disconnect functionality while achieving maximum articulation on the trail

High Clearance X2 Axle Bracket System

• High clearance axle mounts deliver 4.5 inches of additional ground clearance under the rear axle versus stock
• Rear upper shock relocation brackets preserve full shock and suspension travel
• "Adventure Series" maintenance-free joints at all frame-side lower control arm connections reduce grease points and provide excellent vibration absorption
• "Pro Krawler Joints" at all axle-side connections for maximum misalignment capability

Installation Notes:

• Requires welding of front and rear long arm mounts
• Requires use of an aftermarket front axle housing with FAD delete for front upper arm mount welding
• 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 modifying OEM rear shock mounts and welding raised rear upper shock mounts
• Steersmarts XD Yeti HD Bottom Mount Drag Link recommended for hard off-road use
• Limiting straps recommended after final system setup
• All lift heights based on Rubicon models

Built for serious off-road enthusiasts, the Rock Krawler JL45X2PNL-4D delivers a suspension system that performs confidently on the street, in tow, and deep on the trail — giving you the geometry, articulation, and hardware to handle whatever terrain you throw at it.