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2.5" Suspension System | J-Kontrol | 2018-2021 Jeep Wrangler JL (4 Door)


J-Kontrol 2.5" Suspension System Lift Kit

  • Front/Rear Dual Rate Coil Springs (standard or HD) designed to great ride quality across any terrain. HD springs offer additional load capacity for vehicles equipped with winch bumper, fullsize spare, roof rack, etc.
  • 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.
5-7 Hours
2 of 5 Difficulty
Pricing: $1,396.42

Customize Your Item

- Shock Selection -
 * required
- Front Coil Springs -
 * required
- Rear Coil Springs -
 * required
- Steering Stabilizer -
 * required
- J-Cal/Flashcal Programmer -
 * required


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.


  1. Factory wheels cannot be reinstalled without wheel spacers
  2. HD front springs recommended for applications with aftermarket winch/bumper combo
  3. HD rear springs recommended for applications with rear mounted full size spare tire
  4. Will not fit 4xe models
  5. Will not fit Rubicon 392 models

Base Kit

Base Kit components include the following;

J-Kontrol 2.5" Suspension System | 2018-2020 Jeep Wrangler JL (4 Door) -JSPEC137K
- JSPEC1202 1ea - 2018+ JL 2.5in Box Kit
- JKS6201 1ea - 2018+ Jeep JL Control Arm Correction Brackets
- JSPEC1252 1ea - 2018+ JL 2.5in Front Coil Spring Kit - STD
- JSPEC1259 1ea - 2018+ JL 2.5in Rear Coil Spring Kit - STD
- JSPEC9322 2ea - JSPEC- 26.20 x 15.67 x 2-3/8 - EB1/EB1
- JSPEC9329 2ea - JSPEC- 29.78 x 17.59 x 2 - EB1/EB1

Max Tire

Rubicon Models (all kits)
37x12.50 17x9, 18x9, 20x9 5" BS

Non-Rubicon Models (all kits)
35x12.50 17x9, 18x9, 20x9 5" BS

* Other tire/wheel sizes can be used, however may require additional modification.

Shipping Information

  • Item Requires Shipping
  • 145.0 lbs.
  • W12.0000” x H12.0000” x L36.0000”