The Rock Krawler JL 3.5 X Factor Mid Arm System was designed for those 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:
Complete Bolt in System
Excellent Highway Ride
Improved Off-Road Ability
Triple Rate Coil Springs
2.25 RRD Shocks
Front & Rear Spring Leveling Pads
Lifetime Warranty on All Hard Parts
Upgradeable to Rock Krawler JL Long Arm
System Includes:
(4) Triple rate coil springs
(2) 2.25 RRD Spec Front Shocks (Travel Length: 12.0")
(2) 2.25 RRD Spec Rear Shocks (Travel Length: 12.0")
(2) Front bumpstops
(2) Front adjustable lower control arms
(2) Front adjustable upper control arms
(2) Front spring pads
(1) Adjustable front track bar
(2) Sway bar disconnects
(2) Sway bar link relocation brackets
(2) Sway bar disconnect straps
(2) Rear adjustable lower control arms
(2) Rear adjustable upper control arms
(2) Rear spring pads
(2) Rear bumpstops
(2) Extended rear sway bar links
(1) Adjustable rear track bar
(1) Bolt-on rear track bar relocation bracket
Lift Height
All lift heights are based on stock Rubicon models
Sahara add .393" of lift over stock configuration
Sport add .787" of lift over stock configuration
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
General Notes:
*All lift heights based on Rubicon Models
*Recommend a new front C.V. driveshaft for all front shocks with max. extended length greater than 29"
