Rock Krawler JL45NL-4DS1 4.5 Inch X Factor No Limits Mid-Arm Lift Kit Stage 1 JLU 4-Door

The Rock Krawler JL45NL-4DS1 is a 4.5-inch X Factor No Limits Mid-Arm Suspension System – Stage 1 engineered for 2018-present Jeep Wrangler JLU 4-Door owners who demand complete bolt-in installation, maximum articulation, and proven trail durability. This complete front and rear lift kit with shocks is purpose-built for Rubicon owners who want to take full advantage of the factory electronic sway bar disconnect.

No Limits Sway Bar Links:

The "No Limits" name comes from the inclusion of specially engineered front sway bar links designed to work seamlessly with the factory Rubicon electronic sway bar disconnect. CNC-machined billet aluminum center sections paired with Made in USA FK Bearing heim joints and factory-sized hardware mean you simply press the button and hit the rocks — no compromises.

Key Features:

• X Factor Series Adjustable Control Arms — Adjustable upper and lower control arms deliver up to 90 degrees of misalignment, drastically reducing the bind found in JL factory lower control arms and allowing precision caster tuning both front and rear
• Triple Rate Coil Springs — Rock Krawler's industry-leading triple rate coils provide 4.5 inches of lift with improved on-road ride quality over factory linear rate springs, with clearance for up to 42-inch tires (depending on model)
• Track Bar Geometry Corrections (Front & Rear) — Precision axle centering front and rear for no compromise in on-road handling
• Spring Correction Pads — Included pads eliminate the spring bow inherent in the factory JL setup
• Stage 1 Shocks — Complete front and rear shock package included for a fully tuned, trail-ready suspension out of the box
• Bolt-In Installation — Designed as a complete system with all hardware needed for a straightforward mid-arm installation

The Rock Krawler X Factor No Limits system strikes the ideal balance between aggressive off-road articulation and confident on-road handling, making it one of the most comprehensive mid-arm suspension upgrades available for the JLU platform.