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JKS Manufacturing

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

SKU: JSPEC109K
(0)
In stock
Available to order — same-day processing before 12 PM CST
$1,399.00
Confirm Fitment With Confidence

Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.

Shipping & Delivery

Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.

Fitment, Shipping & Product Support

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

Is This for You?

You want the J-Kontrol geometry correction on your JK 2-Door at the lowest possible entry cost — or you're planning to run a specific aftermarket shock and want the platform without paying for a duplicate damper. The JSPEC109K delivers the complete J-Kontrol 3.5" system with JKS J-Spec monotube shocks. It's the base-shock configuration of the J-Kontrol 3.5" JK 2-Door lineup — proven geometry correction, functional damping, and a clear upgrade path when you're ready to step up to Fox.

The Result

3.5" of lift with JKS J-Kontrol geometry correction. J-Spec monotube shocks provide a functional, predictable damping baseline that outperforms factory units. Adjustable control arms allow precise alignment post-install. The JK 2-Door's lighter weight and shorter wheelbase make it a forgiving platform for J-Spec shocks on moderate terrain. The platform is shock-upgrade-ready when you're ready to step up.

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: JKS J-Spec Monotube
  • Coil Rate: Tuned for JK 2-Door platform
  • Control Arms: JKS J-Kontrol geometry-corrected control arms
  • SKU: JSPEC109K

Installation & Fabrication Notes

Professional 4-wheel alignment required post-installation. Torque all control arm hardware to JKS specification after a 500-mile break-in. No cutting or welding required for standard JK 2-Door applications. Shock upgrade path (Fox 2.0 Adventure, Fox 2.0 Performance, Fox 2.5 Elite) is compatible with this control arm platform — confirm eye-to-eye length with OFAS before purchasing replacement shocks.

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

Starting with J-Spec shocks on the J-Kontrol 3.5" JK 2-Door platform and planning a Fox 2.0 Adventure or Fox 2.5 Elite upgrade after your first trail season — does the J-Kontrol's control arm geometry impose any unique shock eye-to-eye length requirements compared to the J-Konnect long-arm at the same lift height on the JK 2-Door? Yes — the J-Kontrol and J-Konnect use different control arm travel arcs, which means the correct shock eye-to-eye length for an upgrade shock must be verified against the J-Kontrol's specific geometry, not the J-Konnect spec. Contact OFAS with your target shock model before you buy and we'll confirm the exact fitment spec for your JK 2-Door J-Kontrol build.