{"product_id":"readylift-4-0-cast-iron-rear-block-kit-ford-super-duty-2011-66-2024","title":"ReadyLIFT 4.0\" OEM-Style Cast Iron Rear Block Kit | 2011–2016 Ford F-250\/F-350 Super Duty 2WD\/4WD SRW 1-Piece Driveshaft","description":"\u003cp\u003e\u003cstrong\u003eReadyLIFT 4.0\" OEM-Style Cast Iron Rear Block Kit | 2011–2016 Ford F-250\/F-350 Super Duty 2WD\/4WD SRW 1-Piece Driveshaft\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e⚠️ 1-piece driveshaft only. Not intended for use with vehicles equipped with a Service Axle. Not compatible with aftermarket or factory air spring\/load leveling kits attached to bump stop tangs.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs This for You?\u003c\/strong\u003e\u003cbr\u003eYou're running a 2011–2016 Ford F-250 or F-350 Super Duty — 2WD or 4WD, 1-piece driveshaft, no Service Axle — and you need 4\" of rear lift to match a front lift kit, restore towing rake, or increase rear load capacity. The ReadyLIFT 66-2024 is the OEM-style cast iron solution built to the same design standard as the factory block — never made from lightweight extrusions — with integrated bump stop landings, 15.5\" E-coated U-bolts, and a Limited Lifetime Warranty. Actual lift height will vary depending on what factory block your truck has.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe Result\u003c\/strong\u003e\u003cbr\u003eTwo OEM-style cast iron 4.0\" rear lift blocks with integrated bump stop landings deliver up to 4.0\" of rear lift on 2011–2016 Ford F-250\/F-350 Super Duty applications with a 1-piece driveshaft. Four 15.5\" E-coated U-bolts, eight nuts, and eight washers are included. Designed to work in concert with ReadyLIFT leveling and lift kits and ideal as a tow package upgrade for stock, leveled, or lifted trucks requiring additional rear lift.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVerified Fitment (OFAS Standard)\u003c\/strong\u003e\u003cbr\u003e✅ Fits: 2011–2016 Ford F-250 Super Duty (2WD and 4WD — 1-piece driveshaft, no Service Axle)\u003cbr\u003e✅ Fits: 2011–2016 Ford F-350 Super Duty (2WD and 4WD — 1-piece driveshaft, no Service Axle)\u003cbr\u003e❌ Does NOT fit: Trucks with a 2-piece driveshaft\u003cbr\u003e❌ Does NOT fit: Trucks equipped with a Service Axle\u003cbr\u003e❌ Does NOT fit: Trucks equipped with aftermarket or factory air spring\/load leveling kits that attach to the bump stop tangs — use of this type of air bag system will void all block warranties and can cause block failure\u003cbr\u003e❌ Note: Actual lift height will vary depending on what factory block your truck has\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Lift Height\u003c\/td\u003e\n\u003ctd\u003eUp to 4.0\" (varies by factory block height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eOEM-style cast iron — integrated bump stop landings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Components\u003c\/td\u003e\n\u003ctd\u003e(2) 4\" cast iron rear lift blocks, (4) 15.5\" E-coated U-bolts, (8) nuts, (8) washers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriveshaft Requirement\u003c\/td\u003e\n\u003ctd\u003e1-piece driveshaft only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Axle\u003c\/td\u003e\n\u003ctd\u003eNot intended for use with Service Axle-equipped trucks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eReadyLIFT Limited Lifetime Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e66-2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eReadyLIFT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Engineering Notes\u003c\/strong\u003e\u003cbr\u003eAll U-bolt hardware must be torqued to specification at ride height — do not torque with the suspension unloaded. Re-torque U-bolts after the first 500 miles of driving. Do not use with aftermarket or factory air spring\/load leveling kits that attach to the bump stop tangs — this will void the block warranty and can cause structural failure of the bump stop tang. A professional alignment check is recommended after installation. Lifting the rear of your vehicle raises its center of gravity; exercise appropriate caution when towing or hauling.\u003c\/p\u003e\u003cblockquote\u003e\n\u003cstrong\u003eEngineering Question:\u003c\/strong\u003e Is your 2011–2016 Ford Super Duty equipped with a 1-piece driveshaft and no Service Axle, and does your truck have any aftermarket or factory air spring\/load leveling kit attached to the bump stop tangs? Confirm all three before ordering — 2-piece driveshaft, Service Axle, and air bag systems are not compatible with this block kit.\u003c\/blockquote\u003e","brand":"ReadyLIFT Suspension","offers":[{"title":"Default Title","offer_id":51631838691649,"sku":"66-2024","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/66-2024.jpg?v=1776349713","url":"https:\/\/obsidianforgedautosupply.com\/products\/readylift-4-0-cast-iron-rear-block-kit-ford-super-duty-2011-66-2024","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}