Important Notes
- 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
- Shock extension brackets can be used on
Rubicon models with stock FOX 2.5 shocks, however this will limit suspension
down travel slightly.
Features & Benefits
- Front/Rear Dual Rate Coil Springs (standard or HD) designed to great ride quality across any terrain.
- Front/Rear Gas Shocks (Jspec, 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.
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.
J-Kontrol suspension systems are J-Rated™ for serious trail use with excellent road manners. Optional FOX shocks increase ratings for all terrains – On and off-road.
Tire Specs
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.
In the Box
In the box for JSPEC141K :
- JKS6201(x1): 2018+ Jeep JL Control Arm Correction Brackets
- JSPEC1310(x1): 2018-2020 Jeep Wrangler JL J-Kontrol Main Box Kit
- JSPEC1351(x1): JL 3.5in Front Coil Spring Kit - STD
- JSPEC1359(x1): JL 3.5in Rear Coil Spring Kit - STD
- JSPEC9322(x2): JSPEC - 26.2 x 15.67 x 2-3/8 - EB1/EB1
- JSPEC9329(x2): JSPEC - 29.78 x 17.59 x 2-3/8 - EB1/EB1
