Fitment Information
- Jeep Wrangler JK
Important Notes:
- 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 Specs:
- Tire: 35×12.50
- Wheel: 16×8, 17×9, 20×9
- Backspacing: 4.5″
- Other tire/wheel sizes can be used, however may require additional modifications.
Specs & Features
- Front+Rear Dual Rate Coil Springs designed to great ride and improved performance across any terrain.
- Front+Rear Gas Shocks (Jspec or FOX 2.0 Adventure Series IFP) 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.
In the Box:
- JSPEC Shocks (JSPEC109K)
- JSPEC2351(x1): 07-18 JK 2Dr 3.5in 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
- Fox Adventure Series Shocks (JSPEC109KFA)
- FOX98450351(x2): Fox Adv Shock 25.15 x 15.55 x 2-S50/EB1
- FOX98450359(x2): Fox Adv Shock 26.35 x 16.75 x 2-BP18/EB1
- JSPEC2351(x1): 07-18 JK 2Dr 3.5in Coil Box Kit
- JSPEC2353(x1): 07-18 Jeep JK J Kontrol Box Kit
- JSPEC2450(x1): JK Advanced Geometry Upgrade Kit
- Fox 2.0 Performance Series Shocks (JSPEC109KFP)
- FOX98024887 (x2) 07-ON Jeep JK Front, PS, 2.0, IFP, 9.6″, 1.5-3.5″ Lift
- FOX98024888 (x2) 07-ON Jeep JK Rear, PS, 2.0, IFP, 9.1″, 1.5-3.5″ Lift
- 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
- Fox Remote Reservoir (JSPEC109KFR)
- FOX98524036(x2): 07-ON Jeep JK Rear, PS, 2.0, R/R, 10.1″, 2.5-4″ Lift
- FOX98524039(x2): 07-18 JK Front, PS, 2.0, R/R
- 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
Product Description
Improve the ground clearance and off road capability of your 4 Door 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.
