Overview

Rock Krawler X-Factor Mid-Arm 4XE Suspension Lift Kits

Rock Krawler X-Factor mid-arm 4XE suspension lift kits are engineered for Jeep JLU 4XE owners who want a bolt-in system with aggressive articulation and trail-ready durability without giving up confident street manners. Designed around their X-Factor adjustable upper and lower control arms, these kits dramatically reduce factory arm bind and provide extensive adjustment so you can dial in caster and pinion angle front and rear. The control arms use Rock Krawler joint packages (Adventure Series at the frame; PRO Krawler at the axle) and deliver up to 95 degrees of misalignment when paired with these combinations, helping the Jeep flex smoothly over obstacles. Front and rear track-bar geometry corrections are built in to help center the axles and maintain stable on-road handling. Get a lift system that is designed to flex hard on the trail, then track straight on the drive home when you order the Rock Krawler X-Factor mid-arm 4XE suspension lift kit best suited for your application.

More product features, items, and notes include:

* Offered at multiple lift heights so you can choose the stance and tire clearance that matches your build
* Choose the shock package that fits your build: no shocks, Bilstein shocks (B51 suffixes), or their in-house RRD 2.25 in. IFP shocks (S1 suffixes); availability varies by application
* Listed components vary slightly by lift height/shock package
* High-clearance adjustable front and rear upper and lower control arms
* Tuned triple-rate coil springs
* Improved rear roll center
* System architecture designed to be a base for future suspension expansion, including long arm upgrades, if desired
* Spring correction pads to reduce factory spring bow
* Adjustable front and rear track bar solutions (rear track bar may vary by shock package)
* Gen-II sway bar links and adjustable rear sway bar links
* Rear track bar relocation bracket
* Bump stops are included with shock-equipped kits; no-shock versions require bump stops to be purchased separately
* Tire size can affect wheel backspace recommendations and require trimming of full OE-style fenders
* Bump stop height of 3 in. recommended for most builds (application dependent)
* If building with a spare delete, it is recommended to drop 1 in. of coil lift height for the rear
* If building an overland-style or heavily up-fitted build in the back, it is recommended to upsize 1 in. of coil lift height for the rear
* New front driveshaft recommended if you plan to off-road routinely
* Welding the rear cradle for use with 37 in. and larger tires highly recommended
* All lift heights based on Rubicon models for standard style build (front bumper and winch, rear bumper, and full-size spare)

Applications

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