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JKS Manufacturing

JKS J-Konnect 3.5" Lift Kit w/ J-Spec Shocks | Standard-Rate Coils | 2018–2026 Jeep Wrangler JL 4-Door

SKU: JSPEC123K
(0)
In stock
Available to order — same-day processing before 12 PM CST
$1,627.87
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-Konnect 3.5" Lift Kit w/ J-Spec Shocks | Standard-Rate Coils | 2018–2026 Jeep Wrangler JL 4-Door

Is This for You?

You want the J-Konnect long-arm geometry on your stock-weight JL 4-Door and you're either planning to run J-Spec monotube shocks long-term or you intend to upgrade shocks later and want the lowest entry cost into the platform. The JSPEC123K is the base-shock, standard-rate coil configuration of the J-Konnect 3.5" system — the most trail-compliant, budget-accessible version of this long-arm kit for lightly built Unlimiteds.

The Result

3.5" of lift with full long-arm caster and pinion correction. Standard-rate coils maximize droop travel and trail articulation for stock-weight builds. J-Spec monotube shocks deliver a functional, predictable damping baseline that outperforms factory units. Adjustable upper and lower control arms allow precise alignment dialing. The platform is shock-upgrade-ready when you're ready to step up.

Verified Fitment (OFAS Standard)

  • Fits: 2018–2026 Jeep Wrangler JL 4-Door (Unlimited) — Gas Models, Stock-Weight Configuration
  • Does NOT fit: JL 2-Door | JL Diesel (EcoDiesel) | JL 4xe Hybrid | JK (2007–2018) | Gladiator JT
  • Coil Note: Standard-Rate — NOT recommended for builds with steel bumpers, winch, or heavy roof rack

System Specifications

  • Lift Height: 3.5"
  • System: J-Konnect Long-Arm
  • Shock: JKS J-Spec Monotube
  • Coil Rate: Standard-Rate — optimized for stock-weight JL 4-Door builds
  • Control Arms: JKS adjustable upper and lower long-arm (front and rear)
  • SKU: JSPEC123K

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. No cutting or welding required for standard JL 4-Door gas applications. Shock upgrade path (Fox 2.0, Fox 2.5, 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

Optimized for 35" tires on a stock-weight build. Recommended backspacing: 4.5"–4.75" on a 17"×9" or 18"×9" wheel. Standard-rate coils are not recommended for tire sizes exceeding 37" without load confirmation.

Engineering Question

Starting with J-Spec shocks on the J-Konnect 3.5" std-rate platform and already thinking about upgrading to Fox 2.5 reservoirs later? The J-Konnect control arm geometry stays the same — but shock body diameter, reservoir clearance, and eye-to-eye length all need to be verified against your specific JL 4-Door build before swapping. Contact OFAS with your target shock model and we'll confirm fitment and any bracket requirements before you pull the trigger.