The Rock Krawler JT 4.5 inch X Factor Mid Arm System was specifically 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. Rock Krawler's industry leading triple rate coils give you 4.5 inches of lift and improves the on-road ride over the factory linear rate springs.
All Rock Krawler JT systems includes two rear spring seats, as well as the corresponding two front spring pads. 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 and Rear Spring Leveling Pads
- Lifetime Warranty on All Hard Parts
System Includes:
- (2) Triple rate front coil springs
- (2) Front adjustable lower control arms
- (2) Front adjustable upper control arms
- (1) Adjustable front track bar
- (2) Sway bar disconnects
- (2) Front Spring Pads
- (2) Sway bar disconnect straps
- (1) Carrier bearing drop bracket
- (2) Rear adjustable lower control arms
- (2) Rear adjustable upper control arms
- (2) Quad rate rear coil springs
- (2) Extended rear sway bar links
- (2) Rear Spring Seats
- (1) Bolt-on rear track bar relocation bracket
Tire Fitment:
Sport and Overland with Full OEM Fenders 37 inch Tall Tires (3 inch Bump Stop Height Recommended) Sport and Overland 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 Overland Wheel Fitment Recommendations 37 inch/38 inch Tall Tires - Recommend 3.5 inch of Back Spacing Rubicon or Sport with Wide Track Axles Fitment Recommendations 37 inch/38 inch Tall Tires - Recommend 4.5 inch of Back Spacing 40 inch Tall Tires - Recommend 3.5 inch of Back Spacing Shock
Notes:
- Generic Front Shock Length - 18 5/16 inch
- Collapsed/ 30 5/16 inch
- Maximum Extended Generic
- Rear Shock Length - 18 5/16 inch Collapsed/ 30 5/16 inch
- Maximum Extended General
Notes:
- All lift heights based on Rubicon models
- Designed to maintain 1/2 inch of rake on Rubicon Models
- As shown valid for OEM axles only
- If so equipped will require removal of rear shutter shock
- For tires larger than 37 inch or hard core off-road use, welding of the rear cradle to the axle tubes is required.
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