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.
Upgrade your 4-Door Jeep Wrangler JL with a 3.5" J-Kontrol suspension system giving excellent stability on and off road. Building off of the J-Venture systems designed for equal parts on-road handling and off-road capability, the J-Kontrol system adds in front control arm correction brackets. These brackets further enhance the on-road handling by flattening out the control arm to more closely mimic factory angles while correcting caster. Combined with the dual rate coil springs, specially valved gas shocks, adjustable track bar, quicker disconnects and more these systems are very solid for the daily driver or beach cruiser, that is not afraid to get out on the trail and mix it up. 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 JSPEC142KFP :
- 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
- JKS6201(x1): 2018+ Jeep JL Control Arm Correction Brackets
- JSPEC1310(x1): 2018-2020 Jeep Wrangler 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
