JKS J-Kontrol 3.5" Lift Kit w/ Fox Remote Reservoir Shocks | 2007–2018 Jeep Wrangler JK 2-Door

JKS J-Kontrol 3.5" Lift Kit w/ Fox Remote Reservoir Shocks | 2007–2018 Jeep Wrangler JK 2-Door

Is This for You?

You're building a serious trail JK 2-Door and you want the thermal capacity of a Fox remote reservoir shock on the J-Kontrol platform. The JSPEC109KFR delivers JKS J-Kontrol geometry-corrected control arms with Fox remote reservoir shocks — the remote canister separates the oil and nitrogen charge from the shock body, dramatically improving heat dissipation on sustained technical terrain. If your JK 2-Door sees long, aggressive trail days and you want the J-Kontrol's install simplicity with remote reservoir performance, this is your kit.

The Result

3.5" of lift with JKS J-Kontrol geometry correction. Fox remote reservoir shocks maintain consistent damping performance across extended trail runs where body-mounted reservoir shocks begin to fade. Adjustable control arms allow precise alignment post-install. The JK 2-Door's lighter weight and shorter wheelbase make it an ideal platform for the remote reservoir's performance advantages on technical terrain.

Verified Fitment (OFAS Standard)

• Fits: 2007–2018 Jeep Wrangler JK 2-Door (Sport, Sahara, Rubicon)
• Does NOT fit: JK 4-Door (Unlimited) | JL Wrangler (2018–2026) | Gladiator JT | Any JL variant
• Platform Note: JK production ended 2018. This kit does NOT apply to any 2019+ Wrangler.

System Specifications

• Lift Height: 3.5"
• System: J-Kontrol
• Shock: Fox Remote Reservoir (remote canister, extended oil volume, nitrogen charged)
• Coil Rate: Tuned for JK 2-Door platform
• Control Arms: JKS J-Kontrol geometry-corrected control arms
• SKU: JSPEC109KFR

Installation & Fabrication Notes

Professional 4-wheel alignment required post-installation. Torque all control arm hardware to JKS specification after a 500-mile break-in. Remote reservoir canister routing must be planned during install — confirm clearance against frame, skid plates, and body panels before finalizing mount locations. The J-Kontrol system does not require a differential drop, which simplifies canister routing compared to a long-arm conversion. No cutting or welding required for standard JK 2-Door applications.

Wheel & Tire Fitment

Engineered for 35"–37" tires. Recommended backspacing: 4.5"–4.75" on a 17"×9" or 18"×9" wheel. The JK 2-Door's shorter wheelbase makes fender clearance more sensitive to tire width — confirm tread width and brand before finalizing wheel selection.

Engineering Question

Choosing between the J-Kontrol with Fox remote reservoir versus the J-Konnect long-arm with Fox remote reservoir on a JK 2-Door — if the shock spec is identical, where does the real-world performance difference show up on trail? The difference is entirely in the control arm geometry. The J-Konnect's long-arm delivers superior caster correction and articulation at 3.5" of lift; the J-Kontrol gets you geometry improvement without the differential drop and long-arm complexity. If your JK 2-Door is a serious trail rig that sees sustained technical terrain, the J-Konnect long-arm is the better long-term platform. Contact OFAS with your build goals and we'll confirm which system is the right call for your specific JK 2-Door use case.