Improve the ground clearance and off-road capability of your 4 Door Jeep Wrangler JL with the JKS J-Kontrol 3.5" suspension system. The J-Kontrol system retains your OE control arms but steps up the rest of your suspension. J-Kontrol kits feature dual rate coil springs, adjustable front track bar, specially valved gas shocks, sway bar Quicker Disconnects, and front control arm correction brackets as well as all other necessary hardware for a complete bolt-on installation. J-Kontrol system's front control arm correction brackets further enhance the on-road handling by flattening out the control arm to more closely mimic factory angles while correcting caster. With a matched combination of parts, J-Kontrol systems offer very solid performance without compromising daily-driver comfort. If you spend a good amount of time on the trails, take control with J-Kontrol.
- Front/Rear Dual Rate Coil Springs (standard or HD) designed to great ride quality across any terrain.
- Front/Rear Gas Shocks (FOX 2.0 Performance Series) specifically valved for this suspension system for improved performance on and off-road.
- Front Adjustable Track Bar and Rear Track Bar Bracket to correct axle positioning under vehicle.
- Front Sway Bar Quicker Disconnects and Rear Sway Bar Links for increased offroad articulation.
- Front/Rear Bump Stop Extensions to properly limit suspension up travel.
- Front Control Arm Correction Brackets to flatten upper/lower control arm angles to correct caster and improve handling.
Rubicon Models (all kits)
Tire: 37x12.50
Wheel: 17x9, 18x9, 20x9
Backspacing: 5"
Non-Rubicon Models (all kits)
Tire: 35x12.50
Wheel: 17x9, 18x9, 20x9
Backspacing: 5"
Other tire/wheel sizes can be used, however may require additional modifications.
- Factory wheels cannot be reinstalled without wheel spacers
- HD front springs recommended for applications with aftermarket winch/bumper combo
- HD rear springs recommended for applications with rear mounted full size spare tire
- Will not fit 4xe models
- Will not fit Rubicon 392 models
In the box for JSPEC142KFP:
- JKS6201 (x1): JL Control Arm Correction Brackets
- JSPEC1310 (x1): JL J-Kontrol Main Box Kit
- JSPEC1352 (x1): JL 3.5in Front Coil Spring Kit - HD
- JSPEC1358 (x1): JL 3.5in Rear Coil Spring Kit - HD
- FOX98524177 (x2): 18-ON Jeep JL Front, PS, 2.0, IFP, 9.6", 2-3" Lift
- FOX98524178 (x2): 18-ON Jeep JL Rear, PS, 2.0, IFP, 11.1", 2-3" Lift
All JKS products are protected by a limited lifetime warranty to ensure they are free from manufacturer defects in material and workmanship so you can go with confidence knowing your JKS parts are covered.
