Improve the ground clearance and off-road capability of your Jeep Wrangler JK 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 designed to great ride and improved performance across any terrain.
- Front & Rear Gas Shocks (JSPEC) 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 Brake Line Brackets to allow for increased offroad articulation.
- Front Control Arm Relocation Brackets to improve suspension geometry for improved handling.
- HD Drag Link Flip Kit w/ Track Bar Bracket to improve steering angles for better handling.
- Front & Rear Bump Stop Extensions to properly limit suspension up travel.
- 2012-2018 Models with 3.6L Pentastar motor will require exhaust modification for driveshaft clearance at full suspension droop, use JKS8150 exhaust extensions.
- Rubicon sway bar link hardware included in kit.
- Requires 17" or larger wheels with 4.5" BS (or smaller) for steering clearance.
Tire: 35x12.50
Wheel: 17x9, 20x9
Backspacing: 4.5"
Other tire/wheel sizes can be used, however may require additional modifications.
In the box for JSPEC108K:
- JSPEC2350(x1): 07-18 JK 4Dr 3.5" Coil Box Kit
- JSPEC2353(x1): 07-18 Jeep JK J Kontrol Box Kit
- JSPEC2450(x1): JK Advanced Geometry Upgrade Kit
- JSPEC9301(x2): JSPEC- 25.20 x 15.20 x 2-3/8 - S50/EB2
- JSPEC9309(x2): JSPEC- 25.95 x 15.40 x 2 - BP18/EB1
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.
