{"product_id":"jks-jspec137ps","title":"JKS J-Kontrol 2.5\" Lift Kit w\/ Fox 2.5 | Standard-Rate Coils | 2018–2026 Jeep Wrangler JL 4-Door","description":"\u003ch2\u003eJKS J-Kontrol 2.5\" Lift Kit w\/ Fox 2.5 | Standard-Rate Coils | 2018–2026 Jeep Wrangler JL 4-Door\u003c\/h2\u003e\n\n\u003ch3\u003eIs This for You?\u003c\/h3\u003e\n\u003cp\u003eYou're running a stock-weight JL 4-Door Unlimited and you want 2.5\" of lift with the J-Kontrol geometry correction and Fox 2.5 reservoir damping. The JSPEC137PS delivers JKS J-Kontrol control arms with Fox 2.5 Performance Series reservoir shocks and standard-rate coil springs. Standard-rate coils maximize droop travel and trail compliance for stock-weight builds, and the J-Kontrol's geometry correction delivers improved caster and pinion angle at 2.5\" of lift without the complexity of a long-arm conversion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Result\u003c\/h3\u003e\n\u003cp\u003e2.5\" of lift with JKS J-Kontrol geometry correction. Standard-rate coils deliver a softer initial spring feel and greater droop travel compared to HD coils — maximizing articulation for stock-weight builds. Fox 2.5 reservoir shocks deliver consistent damping and heat dissipation on extended trail runs. Adjustable control arms allow precise alignment post-install.\u003c\/p\u003e\n\n\u003ch3\u003eVerified Fitment (OFAS Standard)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 2018–2026 Jeep Wrangler JL 4-Door (Unlimited) — Gas Models (2.0T, 3.6L), Stock-Weight Configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e JL 2-Door | JL EcoDiesel | JL 4xe Hybrid | JK (any year) | Gladiator JT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Note:\u003c\/strong\u003e Standard-Rate — NOT recommended for builds with steel bumpers, winch, or heavy roof rack. Use JSPEC138PS (HD coils) for accessorized builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLift Height: 2.5\"\u003c\/li\u003e\n\u003cli\u003eSystem: J-Kontrol\u003c\/li\u003e\n\u003cli\u003eShock: Fox 2.5 Performance Series w\/ Reservoir\u003c\/li\u003e\n\u003cli\u003eCoil Rate: Standard-Rate — optimized for stock-weight JL 4-Door builds\u003c\/li\u003e\n\u003cli\u003eControl Arms: JKS J-Kontrol geometry-corrected control arms\u003c\/li\u003e\n\u003cli\u003eSKU: JSPEC137PS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fabrication Notes\u003c\/h3\u003e\n\u003cp\u003eProfessional 4-wheel alignment required post-installation. Torque all control arm hardware to JKS specification after a 500-mile break-in. Confirm Fox 2.5 reservoir clearance against skid plates and body panels. No cutting or welding required for standard JL 4-Door gas applications.\u003c\/p\u003e\n\n\u003ch3\u003eWheel \u0026amp; Tire Fitment\u003c\/h3\u003e\n\u003cp\u003eOptimized for 35\" tires on a stock-weight build. Recommended backspacing: 4.5\"–4.75\" on a 17\"×9\" or 18\"×9\" wheel. At 2.5\" of lift, fender clearance with 35s is workable on a stock-weight rig — confirm tire brand and tread width before finalizing wheel selection. 37\" tires are not recommended at this lift height without fender modification.\u003c\/p\u003e\n\n\u003ch3\u003eEngineering Question\u003c\/h3\u003e\n\u003cblockquote\u003e\u003cp\u003eChoosing between the J-Kontrol 2.5\" standard-rate and the J-Venture 2.5\" standard-rate for a stock-weight JL 4-Door build with Fox 2.5 reservoir shocks — both deliver geometry correction at 2.5\" of lift without a differential drop, so what's the practical difference? The J-Kontrol and J-Venture use different control arm designs and geometry correction approaches. The J-Venture is a short-arm system; the J-Kontrol uses a different geometry correction methodology. Contact OFAS with your build priorities and terrain type and we'll confirm which system delivers the better geometry correction for your specific stock-weight JL 4-Door use case at 2.5\" of lift.\u003c\/p\u003e\u003c\/blockquote\u003e","brand":"JKS Manufacturing","offers":[{"title":"Default Title","offer_id":51444634222913,"sku":"JSPEC137PS","price":2109.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/JSPEC137PS_0-BKWD.jpg?v=1772726142","url":"https:\/\/obsidianforgedautosupply.com\/products\/jks-jspec137ps","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}