JSPEC137KNS
Increase the clearance and performance of your 4-Door Jeep Wrangler JL with a 2.5" lift J-Kontrol suspension system. It delivers exceptional stability on and off road. A step up from JKS J-Venture systems, J-Kontrol is a true bolt-on system that adds in front control arm correction brackets to the J-Venture Kit's long list of upgrade components including JSPEC dual-rate coil springs, choice of shock options tailored to your needs, including FOX Adventure Series, FOX 2.0 Performance Series, FOX 2.5 Performance Series and FOX 2.5 Elite Series shocks a front adjustable Track Bar and rear Track Bar Bracket (to correct axle positioning under vehicle), Quicker-Disconnect sway bar end links, front/rear Bump Stop Extensions and front Control Arm Correction Brackets to flatten upper/lower control arm angles. The supplied control arm brackets work with your Jeep's stock control arms to correct caster and improve handling. J-Kontrol offers enhanced performance for daily driving, beach cruising, or regular trail use.
Features & Benefits
- Front/Rear Dual Rate Coil Springs (standard or HD) designed to great ride quality across any terrain.
-
Front/Rear Gas Shocks (FOX 2.0 Performance Series, FOX 2.5 Performance Series, or FOX 2.5 Performance Elite) 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.
Recommended Tires & Wheels
Rubicon Models
- 37 x 12.5 with 17 x 9 and 5 in. Backspace
- 37 x 12.5 with 18 x 9 and 5 in. Backspace
- 37 x 12.5 with 20 x 9 and 5 in. Backspace
Non-Rubicon Models
- 35 x 12.5 with 17 x 9 and 5 in. Backspace
- 35 x 12.5 with 18 x 9 and 5 in. Backspace
- 35 x 12.5 with 20 x 9 and 5 in. Backspace
(Trimming may be required)
Picking the Right Coil Springs
JKS J-Rated Suspension Systems feature custom wound, progressive rate coil springs. That means the spring rate increases as the spring is compressed. You and your Jeep enjoy a plush ride during low load driving scenarios such as highway cruising with increased performance as each spring compresses. If you carry a significant amount of extra gear in your Jeep, some J-Rated suspension systems are available with optional high-rate coil springs to support the additional weight.
Read our Shock Buyers Guide
| Year | Make | Model | Submodel | Drive Type | Fuel Type | Position | Lift Height |
|---|---|---|---|---|---|---|---|
| 2018 | Jeep | Wrangler | Unlimited Moab | ALL | ALL | Front and Rear | 2.5" |
| 2018 | Jeep | Wrangler | Unlimited Rubicon | ALL | GAS | Front and Rear | 2.5" |
| 2018 | Jeep | Wrangler | Unlimited Sahara | ALL | GAS | Front and Rear | 2.5" |
| 2018 | Jeep | Wrangler | Unlimited Sport | ALL | GAS | Front and Rear | 2.5" |
| 2018 | Jeep | Wrangler | Unlimited Sport S | ALL | GAS | Front and Rear | 2.5" |
| 2019 | Jeep | Wrangler | Unlimited Moab | ALL | ALL | Front and Rear | 2.5" |
| 2019 | Jeep | Wrangler | Unlimited Rubicon | ALL | GAS | Front and Rear | 2.5" |
| 2019 | Jeep | Wrangler | Unlimited Sahara | ALL | GAS | Front and Rear | 2.5" |
| 2019 | Jeep | Wrangler | Unlimited Sport | ALL | GAS | Front and Rear | 2.5" |
| 2019 | Jeep | Wrangler | Unlimited Sport S | ALL | GAS | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Rubicon | ALL | GAS | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Rubicon Deluxe | ALL | ALL | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Rubicon Xtreme | ALL | ALL | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Sahara | ALL | GAS | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Sport | ALL | GAS | Front and Rear | 2.5" |
| 2020 | Jeep | Wrangler | Unlimited Sport S | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited 80th Anniversary | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Freedom | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited High Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Islander | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Rubicon | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sahara | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sahara Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sahara High Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sport | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sport Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Sport S | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Willys | ALL | GAS | Front and Rear | 2.5" |
| 2021 | Jeep | Wrangler | Unlimited Willys Sport | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited High Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Rubicon | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sahara | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sahara Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sahara High Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sport | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sport Altitude | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Sport S | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Willys | ALL | GAS | Front and Rear | 2.5" |
| 2022 | Jeep | Wrangler | Unlimited Willys Sport | ALL | GAS | Front and Rear | 2.5" |
| 2023 | Jeep | Wrangler | Willys Sport | ALL | GAS | Front and Rear | 2.5" |
| 2024 | Jeep | Wrangler | Rubicon X | ALL | ALL | Front and Rear | 2.5" |
| 2024 | Jeep | Wrangler | Unlimited Rubicon | ALL | ALL | Front and Rear | 2.5" |
| 2024 | Jeep | Wrangler | Unlimited Sahara | ALL | ALL | Front and Rear | 2.5" |
| 2024 | Jeep | Wrangler | Unlimited Willys | ALL | ALL | Front and Rear | 2.5" |
| 2025 | Jeep | Wrangler | Unlimited Rubicon | ALL | ALL | Front and Rear | 2.5" |
| 2025 | Jeep | Wrangler | Unlimited Sahara | ALL | ALL | Front and Rear | 2.5" |
| 2025 | Jeep | Wrangler | Unlimited Willys | ALL | ALL | Front and Rear | 2.5" |
Product title
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$19.99 CAD | $24.99 CAD
Product title
Vendor
$19.99 CAD | $24.99 CAD
Product title
Vendor
$19.99 CAD | $24.99 CAD
Product title
Vendor