Description

The Rock Krawler Suspension JLU 2.5 inch 4XE X-Factor PRO “No-Limits” Mid-Arm System is specifically designed for RUBICON owners who want a complete system, bolt-in installation, and the best articulation of any MID-ARM kit on the market. ALL 8 CONTROL ARMS ARE MADE FROM SOLID 7075 ALUMINUM, AND COME STANDARD WITH ALL BENEFITS OF X-FACTOR BUILT RIGHT IN. Our system proves its durability and off-road performance every time you hit the streets or trail! The Term, “No-Limits” comes from the inclusion of our front sway bar links specifically designed for use with the factory electronic sway bar disconnect feature found standard in your Rubicon Wrangler! The sway bar links themselves come with factory sized hardware, a CNC machined billet aluminum center section, and Made in USA heim joints from FK bearing, once installed, just press the button and hit the rocks! Our industry leading, X-Factor Series, adjustable upper and lower control arms offer a total of 95 degrees of misalignment when paired with our Pro-X Krawler Joints and Adventure Series joints. The inherent bind in a factory JL control arm is greatly reduced.

Rock Krawler’s maintenance free “Adventure Series” joints are found in your front and rear control arms at the frame connection, while our “PRO Krawler Joints” tie in your axle connections. With so much adjustability, it allows you to precision tune the JL’s caster and pinion angle front and rear. Driving you home with the most comfortable ride possible in a Wrangler, are our TRIPLE RATE coils. All 4 coils work together to achieve excellent on-road comfort that we feel is better than the OEM linear rate springs. The coil itself is built with the proper “Free-length” for off-road articulation and stays firmly seated in the coil bucket (as long as a proper length shock is installed), and overall a very controlled reaction to bumps, rocks, sand, mud and whatever else you can manage to throw at them! 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 and handling
• The best off-road ability of all Mid Arm Systems
• Improved rear roll center
• Tuned Triple Rate Coils
• Spring Correction Seats
• Vehicle lean correction
• Upgradable to RK Longarm System
• Best Technical support in the industry
• Jeep remains level on all 4 corners
• Lifetime Warranty Coverage

RRD Spec’d 2.25″ Shocks: IN-HOUSE Designed and built – 2.25″ Fluted aluminum construction, hard coat military grade black anodizing, 7/8″ shaft, IFP (Internal floating piston), better bushings to achieve better misalignment, fully serviceable and rebuildable.

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

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)

General Notes:

• All lift heights based on Rubicon 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 up-fitted build in the back, we recommend upsizing 1” in coil lift height for the rear.
• We recommend a new front driveshaft if you plan to off-road routinely. (Adam’s Driveshaft, Tom Woods, J.E. Reel)