{"product_id":"23-24-ford-f-250f-350-super-duty-4wd-7-inch-radius-arm-lift-kit-45-inch-rear-block-gas-no-shocks-zone-offroad","title":"Zone Offroad 7-Inch Radius Arm Lift Kit | Fox 2.0 Shocks | F-250\/F-350 4WD Gas | 2023-2026","description":"\u003ch3\u003eZone Offroad 7-Inch Front \/ 4.5-Inch Rear Radius Arm Lift Kit | Fox 2.0 Shocks | 2023–2026 Ford F-250 \/ F-350 Super Duty 4WD Gas | SKU: F128F\u003c\/h3\u003e\n\n\u003ch3\u003eIs This for You?\u003c\/h3\u003e\n\u003cp\u003eThis kit is for the 2023–2026 Ford F-250 or F-350 Super Duty 4WD owner with a \u003cstrong\u003egas engine\u003c\/strong\u003e who wants maximum lift — 7 inches of front lift and 4.5 inches of rear lift — with Fox 2.0 shocks included. This is the top-of-lineup Zone Offroad radius arm kit for the 2023–2026 Super Duty Gas platform. If your Super Duty has a 6.7L Power Stroke diesel, this kit will not fit. If your truck is 2WD, this kit will not fit. If you want moderate lift (5 inches), see F125 (2-leaf) or F126 (3-leaf).\u003c\/p\u003e\n\n\u003ch3\u003eThe Result\u003c\/h3\u003e\n\u003cp\u003eThe Zone Offroad F128F delivers 7 inches of front lift and 4.5 inches of rear lift on the 2023–2026 Super Duty solid front axle platform. At 7 inches of front lift, factory radius arms create severe caster misalignment that cannot be corrected with spacers alone — Zone Offroad heavy-duty replacement radius arms are longer and angled to re-establish proper caster geometry at full lift height. Reinforced front crossmembers maintain structural rigidity. Front coil spacers and bump stop extensions complete the front lift. Fox 2.0 shocks are included front and rear, valved for the lifted Super Duty geometry. A 4.5-inch rear block spacer provides rear lift on the leaf-spring rear suspension.\u003c\/p\u003e\n\n\u003ch3\u003eVerified Fitment (OFAS Standard)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2023–2026 Ford F-250 4WD SRW — Gas Engine\u003c\/strong\u003e ✓\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2023–2026 Ford F-350 4WD SRW — Gas Engine\u003c\/strong\u003e ✓\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e Diesel-equipped F-250\/F-350 — 6.7L Power Stroke or any other diesel configuration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e 2WD \/ RWD F-250 or F-350\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e 2022 or earlier Ford Super Duty — different generation platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e Ford F-350 DRW (Dually) — confirm separately\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e Ford F-150 — incompatible platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRadius Arm System — Why Radius Arms Are Required at 7 Inches\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe 2023–2026 F-250\/F-350 Super Duty 4WD uses a radius arm front suspension with a solid front axle.\u003c\/li\u003e\n  \u003cli\u003eAt 7 inches of front lift, factory radius arms create \u003cstrong\u003esevere caster misalignment\u003c\/strong\u003e that cannot be corrected with crossmembers or spacers alone — degrading steering precision and on-road stability to an unsafe degree.\u003c\/li\u003e\n  \u003cli\u003eZone Offroad heavy-duty replacement radius arms are longer and angled to re-establish proper caster geometry at 7 inches of lift. Radius arm replacement is mandatory at this lift height — this is not a spacer-only kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e4.5-Inch Rear Block — Axle Wrap Note\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAt 4.5 inches of rear block height, axle wrap risk under hard acceleration or heavy towing increases compared to lower block heights.\u003c\/li\u003e\n  \u003cli\u003eConfirm with your installer whether an add-a-leaf is recommended for your towing or payload application before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eZone Offroad 2023–2026 Super Duty Gas Radius Arm Kit Selection\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF125:\u003c\/strong\u003e 5\" front \/ 3\" rear | Fox 2.0 shocks | 2-leaf main spring pack | 2023–2026\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF126:\u003c\/strong\u003e 5\" front \/ 3\" rear | Fox 2.0 shocks | 3-leaf main spring pack | 2023–2026\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eF128F (this listing):\u003c\/strong\u003e 7\" front \/ 4.5\" rear | Fox 2.0 shocks | Maximum lift | 2023–2026\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSystem Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU \/ Part Number:\u003c\/strong\u003e F128F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Zone Offroad\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront Lift:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear Lift:\u003c\/strong\u003e 4.5 inches (block spacer — leaf-spring rear suspension)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuspension Type:\u003c\/strong\u003e Radius arm front suspension (solid front axle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e Fox 2.0 — front and rear, included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Gas only — does NOT fit diesel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrivetrain:\u003c\/strong\u003e 4WD only\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 2023–2026 Ford F-250 \/ F-350 Super Duty 4WD Gas SRW\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 262 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-duty radius arms (corrected caster geometry)\u003c\/li\u003e\n  \u003cli\u003eReinforced front crossmembers\u003c\/li\u003e\n  \u003cli\u003eFront coil spacers\u003c\/li\u003e\n  \u003cli\u003eBump stop extensions\u003c\/li\u003e\n  \u003cli\u003e4.5-inch rear block spacer\u003c\/li\u003e\n  \u003cli\u003eFox 2.0 shocks — front and rear\u003c\/li\u003e\n  \u003cli\u003eAll required hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional installation required. Radius arm replacement on a solid front axle requires proper axle positioning, caster verification, and torque sequencing.\u003c\/li\u003e\n  \u003cli\u003eFull 4-wheel alignment mandatory post-installation. Budget for alignment at time of install.\u003c\/li\u003e\n  \u003cli\u003eTorque all fasteners to Zone Offroad specification included with the kit. Do not estimate torque on radius arm, crossmember, or steering fasteners.\u003c\/li\u003e\n  \u003cli\u003eVerify tire and wheel clearance with your specific offset and tire combination before ordering.\u003c\/li\u003e\n  \u003cli\u003eConfirm with installer whether an add-a-leaf is recommended for your towing or payload use at 4.5-inch block height.\u003c\/li\u003e\n  \u003cli\u003eRe-torque all suspension fasteners after 500 miles of break-in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e⚠️ \u003cstrong\u003eLTL Freight Notice:\u003c\/strong\u003e This item ships via freight carrier due to size and weight. Residential delivery is included. Freight carrier will contact you to schedule.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngineering Question:\u003c\/strong\u003e Have you confirmed your F-250\/F-350 is a 2023–2026 4WD Gas model? Diesel owners — this kit does not fit. 2WD owners — this kit does not fit. Want moderate lift instead of maximum? See F125 (2-leaf) or F126 (3-leaf) for the 5-inch\/3-inch kits.\u003c\/p\u003e","brand":"Zone Off-Road","offers":[{"title":"Default Title","offer_id":51417112248641,"sku":"F128F","price":1700.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/ZONF128-FQMS.jpg?v=1771967344","url":"https:\/\/obsidianforgedautosupply.com\/products\/23-24-ford-f-250f-350-super-duty-4wd-7-inch-radius-arm-lift-kit-45-inch-rear-block-gas-no-shocks-zone-offroad","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}