{"product_id":"readylift-4-0-flat-rear-block-kit-ford-f250-super-duty-2017-66-2741","title":"ReadyLIFT 4.0\" Flat Rear Block Kit | 2017–2026 Ford F-250 Super Duty 4WD","description":"\u003cp\u003e\u003cstrong\u003eReadyLIFT 4.0\" Flat Rear Block Kit | 2017–2026 Ford F-250 Super Duty 4WD\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs This for You?\u003c\/strong\u003e\u003cbr\u003eYou're running a 2017–2026 Ford F-250 Super Duty 4WD with a 2-piece driveshaft and you need to put rake back in your truck for towing and hauling — or you're pairing a rear block with an existing leveling kit to achieve a level, lifted stance all the way around. You need OEM-quality fabricated steel construction, not lightweight extrusions that flex under load. The ReadyLIFT 66-2741 is a model-specific, OEM-style flat rear block kit built to the same design standards as the factory suspension — with integrated bump stop landing pads, a billet driveline spacer, and new longer e-coated U-bolts included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe Result\u003c\/strong\u003e\u003cbr\u003eFour inches of rear lift via two OEM-style fabricated steel flat rear blocks with integrated bump stop landing pads — never made from lightweight extrusions. A billet driveline spacer corrects the driveshaft angle introduced by the block height, maintaining proper driveline geometry on 2-piece driveshaft applications. Four new long e-coated U-bolts with nuts and washers are included for a complete, clean installation. The result is a purposeful rake that improves towing stance, pairs perfectly with a ReadyLIFT leveling kit, and carries a Limited Lifetime Warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVerified Fitment (OFAS Standard)\u003c\/strong\u003e\u003cbr\u003e✅ Fits: 2017–2026 Ford F-250 Super Duty 4WD (2-piece driveshaft)\u003cbr\u003e❌ Does NOT fit: 2019–2026 Ford F-350 Super Duty — this block is F-250 specific\u003cbr\u003e❌ Does NOT fit: 1-piece driveshaft applications\u003cbr\u003e❌ Does NOT fit: Trucks equipped with aftermarket or factory add-on air spring\/load leveling kits that attach to the bump stop tangs — use of air bag systems on this block will void all warranties and can cause block bump stop tang failure\u003cbr\u003e❌ Note: Lift height will vary depending on what factory block your truck has from the factory\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\u003eBlock Height\u003c\/td\u003e\n\u003ctd\u003e4.0\" Flat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlock Construction\u003c\/td\u003e\n\u003ctd\u003eOEM-style fabricated steel with integrated bump stop landing pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriveline Spacer\u003c\/td\u003e\n\u003ctd\u003eBillet, included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eU-Bolts\u003c\/td\u003e\n\u003ctd\u003e4x long e-coated U-bolts with nuts and washers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriveshaft Compatibility\u003c\/td\u003e\n\u003ctd\u003e2-piece driveshaft only\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\u003e66-2741\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\u003eWheel \u0026amp; Tire Fitment\u003c\/strong\u003e\u003cbr\u003eNo wheel or tire restrictions specific to this component. Rear block height affects overall vehicle rake and stance — verify your total lift height and tire clearance with your existing front lift configuration before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Engineering Notes\u003c\/strong\u003e\u003cbr\u003eThis is a bolt-on rear block kit requiring no cutting or welding. U-bolts must be torqued to OEM specification at ride height. A professional 4-wheel alignment is recommended after installation to confirm ride height and geometry. Do not use this block kit with aftermarket or factory add-on air spring\/load leveling systems that attach to the bump stop tangs — doing so will void the warranty and risks structural failure of the bump stop tang. Lifting your vehicle raises its center of gravity; exercise appropriate caution when towing or hauling. All Advanced Driver Assistance Systems (ADAS) including Ford Co-Pilot360 and automatic headlight leveling should be verified after any suspension height change.\u003c\/p\u003e\u003cblockquote\u003e\n\u003cstrong\u003eEngineering Question:\u003c\/strong\u003e Does your 2017–2026 F-250 Super Duty have a 1-piece or 2-piece driveshaft, and does it have a factory rear block installed? Confirm your driveshaft configuration and factory block height before ordering — this kit is engineered for 2-piece driveshaft applications only, and final lift height will vary based on your factory block.\u003c\/blockquote\u003e","brand":"ReadyLIFT Suspension","offers":[{"title":"Default Title","offer_id":51631842754881,"sku":"66-2741","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/66-2741.jpg?v=1776288938","url":"https:\/\/obsidianforgedautosupply.com\/products\/readylift-4-0-flat-rear-block-kit-ford-f250-super-duty-2017-66-2741","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}