JKS J-Konnect 3.5" Lift Kit w/ Fox Remote Reservoir Shocks | 2007–2018 Jeep Wrangler JK 4-Door

JKS J-Konnect 3.5" Lift Kit w/ Fox Remote Reservoir Shocks | 2007–2018 Jeep Wrangler JK 4-Door

Is This for You?

You're building a serious trail JK 4-Door Unlimited and you want the thermal capacity and damping performance of a Fox remote reservoir shock paired with the J-Konnect long-arm geometry. The JSPEC113KFR delivers JKS long-arm 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 4-Door sees long, aggressive trail days with a full accessory load, this is the shock configuration built for it.

The Result

3.5" of lift with JKS long-arm caster and pinion correction. Fox remote reservoir shocks maintain consistent damping performance across extended trail runs where body-mounted reservoir shocks begin to fade. Adjustable upper and lower control arms allow precise alignment post-install. The JK 4-Door's longer wheelbase and heavier platform benefit significantly from the remote reservoir's sustained damping consistency under load.

Verified Fitment (OFAS Standard)

• Fits: 2007–2018 Jeep Wrangler JK 4-Door Unlimited (Sport, Sahara, Rubicon)
• Does NOT fit: JK 2-Door | 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-Konnect Long-Arm
• Shock: Fox Remote Reservoir (remote canister, extended oil volume, nitrogen charged)
• Coil Rate: Tuned for JK 4-Door platform
• Control Arms: JKS adjustable upper and lower long-arm (front and rear)
• SKU: JSPEC113KFR

Installation & Fabrication Notes

Long-arm geometry requires a front differential drop or relocation bracket (included or specified in kit). 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. No cutting or welding required for standard JK 4-Door applications.

Wheel & Tire Fitment

Engineered for 35"–37" tires. Recommended backspacing: 4.5"–4.75" on a 17"×9" or 18"×9" wheel. Confirm fender clearance with specific tire brand and tread width before finalizing wheel selection.

Engineering Question

Routing Fox remote reservoir canisters on a J-Konnect 3.5" long-arm JK 4-Door Unlimited — how does the 4-Door's longer frame rail and additional body panels affect front canister placement compared to the JK 2-Door? The 4-Door has more real estate for canister routing but also more potential conflict points with rear passenger body panels and longer frame-mounted skid plates. Optimal placement depends on your specific skid plate configuration, rock rail setup, and whether you're running a front locker. Contact OFAS before your install and we'll walk you through the canister routing that works for your specific JK 4-Door build.