{"product_id":"jks-jspec142ps","title":"JKS J-Kontrol 3.5\" Lift Kit w\/ Fox 2.5 | HD Coils | 2018–2026 Jeep Wrangler JL 4-Door","description":"\u003ch2\u003eJKS J-Kontrol 3.5\" Lift Kit w\/ Fox 2.5 | HD 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 building an accessorized JL 4-Door Unlimited — steel bumper, winch, or heavy spare — and you want 3.5\" of lift with the J-Kontrol geometry correction and Fox 2.5 reservoir damping. The JSPEC142PS delivers JKS J-Kontrol control arms with Fox 2.5 Performance Series reservoir shocks and HD coil springs. HD coils handle the weight of a built rig without sagging, and the J-Kontrol's geometry correction delivers improved caster and pinion angle without the complexity of a long-arm conversion.\u003c\/p\u003e\n\n\u003ch3\u003eThe Result\u003c\/h3\u003e\n\u003cp\u003e3.5\" of lift with JKS J-Kontrol geometry correction. HD coils maintain ride height under accessory loads. Fox 2.5 reservoir shocks deliver consistent damping and heat dissipation on extended trail runs. Adjustable control arms allow precise alignment post-install. The J-Kontrol's install simplicity is a meaningful advantage on the JL 4-Door platform compared to a full long-arm conversion.\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)\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 HD Rate — engineered for accessorized JL 4-Door builds with steel bumpers or winch. Use JSPEC141PS (Std-Rate) for stock-weight builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLift Height: 3.5\"\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: HD — tuned for accessorized JL 4-Door builds\u003c\/li\u003e\n\u003cli\u003eControl Arms: JKS J-Kontrol geometry-corrected control arms\u003c\/li\u003e\n\u003cli\u003eSKU: JSPEC142PS\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\u003eEngineered for 35\"–37\" tires on an accessorized build. 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.\u003c\/p\u003e\n\n\u003ch3\u003eEngineering Question\u003c\/h3\u003e\n\u003cblockquote\u003e\u003cp\u003eChoosing between the J-Kontrol 3.5\" and J-Konnect 3.5\" for an accessorized JL 4-Door build with Fox 2.5 reservoir shocks and HD coils — both deliver geometry correction at 3.5\" of lift, so what's the practical difference in trail performance and install complexity? The J-Konnect's long-arm geometry delivers superior caster correction and articulation, but requires a differential drop and more complex install. The J-Kontrol corrects geometry without the long-arm conversion complexity. For a JL 4-Door that sees moderate trails and daily driving with a full accessory load, the J-Kontrol is a capable, clean solution. Contact OFAS with your trail intensity and build goals and we'll confirm which system is the right fit for your specific JL 4-Door build.\u003c\/p\u003e\u003c\/blockquote\u003e","brand":"JKS Manufacturing","offers":[{"title":"Default Title","offer_id":51444631568705,"sku":"JSPEC142PS","price":2109.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/JSPEC142PS_0-BKWD.jpg?v=1772726090","url":"https:\/\/obsidianforgedautosupply.com\/products\/jks-jspec142ps","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}