The Rock Krawler JL 3.5 Flex System was designed for those who want an easy bolt-in installation, minimal maintenance 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. Rock Krawler's industry leading triple rate coils give you 3.5 inch of lift to clear up to 40 inch 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
• Twin Tube Shocks
• Front and 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) 12.6 Inch Travel RRD Spec Twin Tube Front Shocks (Collapsed Length: 17.3 Inch)
(2) 13.7 Travel RRD Spec Twin Tube Rear Shocks (Collapsed Length: 18.4 Inch)
(2) Front bumpstops
(2) Front adjustable lower control arms
(2) Front spring pads
(1) Adjustable front track bar
(2) Front sway bar disconnects
(2) Sway bar link relocation brackets
(2) Sway bar disconnect straps
(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 Inch of lift over stock configuration
Sport add .787 Inch of lift over stock configuration
Tire Fitment:
Sport and Sahara with Full OEM Fenders
37 inch Tall Tires (3 inch Bump Stop Height Recommended)
Sport and Sahara with Trimmed or High Lined OEM Fenders
38 inch Tall Tires (3 inch Bump Stop Height Recommended)
Rubicon with Full OEM Fenders
37 inch/38 inch Tall Tires (3 inch Bump Stop Height Recommended)
Rubicon with Trimmed or High Lined OEM Fenders
40 inch Tall Tires (3 inch Bump Stop Height Recommended)
Wheel Fitment:
Sport and Sahara Wheel Fitment Recommendations
37 inch/38 inch Tall Tires - Recommend 3.5 inch of Back Spacing
Rubicon Fitment Recommendations
37 inch Tall Tires Recommend 4.5 inch of Back Spacing
40 inch Tall Tires Recommend 3.5 inch 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 inch