The Rock Krawler JL 2.5 X Factor Mid Arm System was designed for 4XE owners who want a complete bolt-in installation, maximum articulation from a mid-arm kit and the durability and off-road performance you expect from Rock Krawler Suspension. The X Factor Series adjustable lower control arms offer a total of 90 degrees of misalignment that drastically reduces the bind inherent in JL factory lowers, while high misalignment adjustable upper control arms let you precision tune your JL’s caster both front and rear. Rock Krawler’s industry leading triple rate coils give you 2.5" of lift to clear up to 38" tires, depending on model, and improve the on-road ride over the factory linear rate springs. All Rock Krawler JL systems include correction pads that reduce the spring bow inherent in the factory set up. The provided track bar geometry corrections, both front and rear, lets you perfectly center the axles so there is no compromise in on road handling.

System Benefits:

Complete Bolt in System
Excellent Highway Ride
Improved Off-Road Ability
Triple Rate Coil Springs
Front & Rear Spring Leveling Pads
Lifetime Warranty on All Hard Parts
Upgradeable to Rock Krawler JL Long Arm
Jeep remains level on all 4 corners
Tire Fitment:

Sport and Sahara with Full OEM Fenders
35" Tall Tires (2" Bump Stop Height Recommended)

Sport and Sahara with Trimmed or High Lined OEM Fenders
37" Tall Tires (3" Bump Stop Height Recommended)

Rubicon with Full OEM Fenders
37" Tall Tires (2" Bump Stop Height Recommended)

Rubicon with Trimmed or High Lined OEM Fenders
38" Tall Tires (Up to 40" Tall Tires for Ultra Low COG Stance)

(3" Bump Stop Height Recommended)

Wheel Fitment:

Sport and Sahara Models
35" Tall Tires – Recommend 4.5" of Backspacing
37" Tall Tires – Recommend 3.5" of Backspacing

Rubicon Fitment Models
37" Tall Tires – Recommend 4.5" of Backspacing
38"/40" Tall Tires – Recommend 3.5" of Backspacing

General Notes:

*All lift heights based on Rubicon 4XE models for standard style build (i.e., front bumper and winch, rear bumper and full-size spare).

*XR Package does not require OUR raised rear track bar bracket, the factory axle has a raised rear trackbar bracket, and for OUR systems that do not have a rear trackbar one must be added.

*If building with a spare delete, we recommend dropping 1” in coil lift height for the rear.

*If building an overland or heavily upfitted build in the back, we recommend upsizing 1” in coil lift height for the rear.