JKS J-Konnect 2.5" Lift Kit w/ J-Spec Shocks | Standard-Rate Coils | 2018–2026 Jeep Wrangler JL 4-Door

JKS J-Konnect 2.5" 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 Unlimited 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 JSPEC121K delivers the complete J-Konnect 2.5" standard-rate system with JKS J-Spec monotube shocks. It's the base-shock, trail-compliant configuration of the J-Konnect 2.5" lineup for stock-weight builds.

The Result

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

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: 2.5"
• 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: JSPEC121K

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 from OFAS.

Engineering Question

Planning to start with J-Spec shocks on the J-Konnect 2.5" std-rate platform and upgrade to Fox 2.5 reservoirs after your first season of trails? The long-arm control arm geometry is identical across all shock variants in this lineup — but the std-rate coil's travel range means your replacement shock needs to match a specific eye-to-eye length to avoid binding at full droop. Contact OFAS before you buy your upgrade shocks and we'll spec the exact fitment for your JL 4-Door build.