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3.5" Lift Kit | J-Kontrol | DIESEL | Wrangler JL 4 Door
JKS
ROAD
TRAIL
CRAWL
BAJA
J-Kontrol suspension systems are J-Rated™ for serious trail use with excellent road manners. Optional FOX shocks increase ratings for all terrains – On and off-road.
Looking for a different terrain focus? Click here...
Improve the ground clearance and off road capability of your 4 Door Diesel Jeep Wrangler JL 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.
Increase the clearance and performance of your Diesel 4-Door Jeep Wrangler JL with a 3.5" 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, custom-valved aluminum FOX 2.0 Performance Series gas 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.
Easy to install bolt on performance suspension to handle the toughest off road trails and drive you home after. These J-Kontrol Systems build off the base J-Venture to add front control arm correction brackets to offer optimal front suspension geometry for handling while retaining the strength capability.These control arm brackets combined with the dual rate coil springs, adjustable track bar, quicker disconnects and more offer improved trail performance and strength while catering to on-road handling needs. This particular kit features the FOX 2.0 Adventure Series IFP steel bodied shocks offering a big step up from the OE shocks for improved performance on and offroad. Get connected with J-Konnect.
Difficulty: Moderately Easy | Time: 7 hrs
Need to locate install help for other JKS products?
Click here to visit our Installation Center!
Rubicon Models (all kits)
Tire: 37x12.50
Wheel: 17x9, 18x9, 20x9
Backspacing: 5"
Non-Rubicon Models (all kits)
Tire: 35x12.50
Wheel: 17x9, 18x9, 20x9
Backspacing: 5"
Other tire/wheel sizes can be used, however may require additional modifications.
In the box for JSPEC160K:
JSPEC1310 (x1) J-Kontrol Main Box Kit
JKS6201 (x1) Control Arm Correction Brackets
JSPEC1352 (x1) 3.5in Front Coil Spring Kit - HD
JSPEC1359 (x1) 3.5in Rear Coil Spring Kit - STD
JSPEC9322 (x2) JSPEC Gas Shock Front
JSPEC9329 (x2) JSPEC Gas Shock Rear
In the box for JSPEC160KFP:
JSPEC1310 (x1) J-Kontrol Main Box Kit
JKS6201 (x1) Control Arm Correction Brackets
JSPEC1352 (x1) 3.5in Front Coil Spring Kit - HD
JSPEC1359 (x1) 3.5in Rear Coil Spring Kit - STD
FOX98524177 (x2) Front, FOX 2.0 IFP Performance Shock
FOX98524178 (x2) Rear, FOX 2.0 IFP Performance Shock
In the box for JSPEC160PES:
In the box for JSPEC160KFA:
In the box for JSPEC160PS:
Where can I find replacement parts for my lift kit components?
Click here to shop our Maintenance & Service Packs Collection
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.
ROAD
TRAIL
CRAWL
BAJA
J-Kontrol suspension systems are J-Rated™ for serious trail use with excellent road manners. Optional FOX shocks increase ratings for all terrains – On and off-road.
Looking for a different terrain focus? Click here...
© Fox Factory, Inc. | Jeep is a registered trademark of FCA US LLC.
PROPOSITION 65 WARNING EXPLANATION
JKS Manufacturing applies warning labels either on our product(s), the packaging containing our product(s) regarding CA Prop 65. This warning is part of our effort to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986 (known as “Proposition 65”). The warning does not mean that our products will necessarily cause cancer, birth defects, or other reproductive harm. While we believe our products are not harmful when used as designed, and we rely on our suppliers to help with this effort, we also provide these warnings to comply with Proposition 65.
What is California Proposition 65?
Proposition 65 is a far reaching law and applies to any company that operates in California, sells products in California, or manufactures products that may be sold in or brought into California. Proposition 65 requires warnings to accompany any product that contains or may contain any of the chemicals appearing on the list administered by California’s Office of Environmental Health Hazard Assessment (OEHHA), a part of the California Environmental Protection Agency. The current list can be found here: https://oehha.ca.gov/proposition-65/proposition-65-list
What This Means To You
While the proposition was created to protect drinking water sources from chemical contamination, the scope of the law has expanded over the years. It now includes over 900 chemicals and also pertains to (but is not limited to) exposure through touch, inhalation, ingestion, or skin contact.
The Prop 65 warning can now be found on products that may contain a small amount of over 900 chemicals or ingredients that the OEHHA lists as a carcinogen or reproductive toxicant. This includes compounds that are used in everyday life like vinyl, coatings, plastics, and much more.
Why has JKS Manufacturing decided to provide a warning?
Proposition 65 imposes strict penalties for noncompliance. While California establishes “safe harbor numbers” for listed chemicals, the costs of individually testing products that JKS Manufacturing sells and distributes is prohibitive (particularly when the list of chemicals is so expansive and subject to change on an annual basis).
As a result of the steep penalties and because there is no penalty for providing an unnecessary warning, JKS Manufacturing (like some other companies doing business in California) decided to provide the Proposition 65 notice out of an abundance of caution.
For more information about Proposition 65 we suggest that you visit:
http://oehha.ca.gov/prop65/background/p65plain.html
IFP design eliminates oil aeration Valved specifically for JSPEC systems. Direct bolt-in replacement.
The 2.0 Performance Series IFP shock has a predicable ride quality capable of handling the roughest road conditions.
Shock absorbers are an important part of your Jeep’s suspension system. JKS offers a range of custom-valved shocks to fit your budget and performance needs. JSPEC Series gas shocks feature affordable twin-tube design with custom valving for improved handling and ride quality on and off-road. Ride quality is tuned to work with large diameter all-terrain tires. For more aggressive off-road performance, step up to optional FOX shock absorbers. They feature IFP technology, aluminum bodies, heavy duty shafts and superior monotube valving for a better driving experience regardless of terrain.
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.