Rock Krawler 3.5in X Factor Lift Kit

The Rock Krawler JL 3.5 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 eliminates the bind found in your JL’s 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 3.5" of lift to clear up to 40" 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:

Tire Fitment:

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

Rubicon with Full OEM Fenders
37”/38” Tall Tires (3” Bump Stop Height Recommended)
Rubicon with Trimmed or High Lined OEM Fenders
40” Tall Tires (3” Bump Stop Height Recommended)

Wheel Fitment:

Sport and Sahara Wheel Fitment Recommendations
37”/38” Tall Tires - Recommend 3.5” of Back Spacing

Rubicon Fitment Recommendations
37” Tall Tires – Recommend 4.5” of Back Spacing
40” Tall Tires – Recommend 3.5” of Back Spacing

Shock Notes:

Generic Front Shock Length – 17.8” Collapsed/ 29.3” Maximum Extended
Generic Rear Shock Length – 18.3” Collapsed/ 30.3” Maximum Extended

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).

*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.

*Recommend a new front C.V. driveshaft for all front shocks with max. extended length greater than 29”