Improve the ground clearance and off road capability of your 4 Door Jeep Wrangler JL with the JKS J-Kontrol 3.5 inch 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.
Features & Benefits
- Fox Adventure Series Shocks
- Front/Rear Dual Rate Coil Springs (standard) 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.
Tire Specs
- Rubicon Models (all kits)
- Tire: 37x12.50
- Wheel: 17x9, 18x9, 20x9
- Backspacing: 5 inch
- Non-Rubicon Models (all kits)
- Tire: 35x12.50
- Wheel: 17x9, 18x9, 20x9
- Backspacing: 5 inch
Other tire/wheel sizes can be used, however may require additional modifications.
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.
Kit Components
Includes two FOX98450323, 2018-2024 Fox Adv Shock 26.86 x 16.76 x 2 EB1/EB1, UPC Code 814897017764 Includes two FOX98450327, 2018-2024 Fox Adv Shock 30.06 x 18.46 x 2 EB1/EB1, UPC Code Includes one JKS6201, 2018-2024 Jeep Wrangler JL Control Arm Correction Brackets, UPC Code 814897012486 Includes one JSPEC1310, 2018-2024 Jeep Wrangler (JL) J-Kontrol Ma inch Box Kit, UPC Code 814897012578 Includes one JSPEC1351, 2018-2024 Jeep Wrangler (JL) 3.5 inch Front Coil Spr inchg Kit - STD, UPC Code 814897012738 Includes one JSPEC1359, 2018-2024 Jeep Wrangler (JL) 3.5 inch Rear Coil Spr inchg Kit - STD, UPC Code 814897012394
- Brand Logo:
- https://www.asapnetwork.org/sites/default/files/brands/icons/JKS-3a-red.png
- California Prop 65 Notice:
- WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Doors:
- 4 Door
- Installation Time:
- 7 Hours
- Kit Components:
- Includes two FOX98450323, 2018-2024 Fox Adv Shock 26.86 x 16.76 x 2 EB1/EB1, UPC Code 814897017764Includes two FOX98450327, 2018-2024 Fox Adv Shock 30.06 x 18.46 x 2 EB1/EB1, UPC Code Includes one JKS6201, 2018-2024 Jeep Wrangler JL Control Arm Corr
- Last Update:
- 2026-01-28 15:46:10
- Lift Height:
- 3.5 Inch
- Sold As:
- Kit
- Universal:
- No
- Vehicle Type:
- Jeep
- Warranty:
- 5 Year, 100,000-mile PLUS Protection
- Installation Difficulty:
- Moderately Easy
- J-Rating:
- J-Kontrol
- Shocks Included:
- FOX 2.0 Adventure Series
- Title:
- J-Kontrol 3.5" Lift Kit
