Overview

Rock Krawler X-Factor Mid-Arm Suspension Lift Kits

Rock Krawler took the factory mid-arm concept and pushed it further with X-Factor mid-arm suspension lift kits. These systems combine high-clearance adjustable control arms with multi-rate, long-travel coil springs to reduce factory bind, improve articulation, and maintain stable handling. At the core is X-Factor control arm and joint strategy, pairing high-misalignment joint combinations to increase usable travel and smooth out suspension movement, while providing the adjustability needed to dial-in caster and pinion angle. They also employ double-adjustable track bars and track bar geometry correction to re-center the axles and keep the rig driving predictably after the lift. Most kits are configured so you can run your preferred shocks, and they include the supporting hardware and link/disconnect pieces that help you complete a Jeep that is comfortable on the highway and ready when the pavement ends. 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 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; availability varies by application
* 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
* Control arm joint packages (Adventure Series at the frame; PRO Krawler at the axle) deliver up to 95 degrees of misalignment
* Tuned multi-rate coil springs (triple-rate on most applications; JT versions commonly feature quad-rate rears) for controlled ride quality and off-road performance
* Improved rear roll center on most applications
* System architecture designed to be a base for future suspension expansion, including long-arm systems, if desired
* Gen II sway bar links (application dependent)
* Bolt-on rear track bar relocation bracket
* Front and rear extended brake lines (application dependent)
* 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)
* Welding the rear cradle for use with 37 in. and larger tires highly recommended (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
* 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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