{"product_id":"yukon-ford-8-8in-master-overhaul-kit-2015-f150-mustang-irs","title":"Yukon Ford Super 8.8\" Rear Master Overhaul Kit - 2015+ F-150 \u0026 Mustang","description":"\u003cp\u003eThe \u003cstrong\u003eFord Super 8.8\" Rear Master Overhaul Kit\u003c\/strong\u003e provides the bearings, races, seal, shims, and setup components needed for a complete rebuild of 2015 and newer Ford Super 8.8\" rear differentials. Built around Timken bearing components, this kit is intended for gear changes, worn differential service, and complete axle rebuilds where pinion preload, carrier preload, backlash, and gear tooth contact pattern must be reset correctly.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed specifically for the newer-generation \u003cstrong\u003e12-bolt cover Ford Super 8.8\u003c\/strong\u003e used in F-150 solid rear axle and Mustang IRS applications. Because the Mustang IRS uses additional stub axle seals and needle bearings outside the core differential rebuild, those components are sold separately and should be matched to the specific IRS configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarrier Bearings and Races\u003c\/li\u003e\n\u003cli\u003ePinion Bearings and Races\u003c\/li\u003e\n\u003cli\u003ePinion Seal\u003c\/li\u003e\n\u003cli\u003eComplete Shim Kit\u003c\/li\u003e\n\u003cli\u003eRing Gear Bolts\u003c\/li\u003e\n\u003cli\u003ePinion Nut\u003c\/li\u003e\n\u003cli\u003eCrush Sleeve\u003c\/li\u003e\n\u003cli\u003eThread Locker\u003c\/li\u003e\n\u003cli\u003eGear Marking Compound with Brush\u003c\/li\u003e\n\u003cli\u003eDifferential Gasket and Sealing Components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMustang IRS stub axle seals and needle bearings are sold separately.\u003c\/li\u003e\n\u003cli\u003eFits 12-bolt cover Ford Super 8.8\" applications only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eSpecifications \u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n\u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable class=\"custom-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMaster Differential Overhaul Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle Application\u003c\/td\u003e\n\u003ctd\u003eFord Super 8.8\" Rear Differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Year Range\u003c\/td\u003e\n\u003ctd\u003e2015+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover Bolt Count\u003c\/td\u003e\n\u003ctd\u003e12 Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Manufacturer\u003c\/td\u003e\n\u003ctd\u003eTimken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle Configuration\u003c\/td\u003e\n\u003ctd\u003eSolid Axle or IRS, Depending on Vehicle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrier Bearings and Races\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePinion Bearings and Races\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePinion Seal\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShim Kit\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Gear Bolts\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrush Sleeve\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePinion Nut\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetup Materials\u003c\/td\u003e\n\u003ctd\u003eThread Locker and Gear Marking Compound with Brush\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMustang IRS Stub Axle Seals\u003c\/td\u003e\n\u003ctd\u003eSold Separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMustang IRS Needle Bearings\u003c\/td\u003e\n\u003ctd\u003eSold Separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFitment \u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n\u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable class=\"custom-specs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eRear Axle Configuration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-150\u003c\/td\u003e\n\u003ctd\u003e2015–2023\u003c\/td\u003e\n\u003ctd\u003eSuper 8.8 Solid Rear Axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003e2015–2023\u003c\/td\u003e\n\u003ctd\u003eSuper 8.8 IRS Rear Differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits Ford Super 8.8\" rear differential applications only.\u003c\/li\u003e\n\u003cli\u003eDesigned for 12-bolt cover housings.\u003c\/li\u003e\n\u003cli\u003eCompatible with 2015+ F-150 solid rear axle applications.\u003c\/li\u003e\n\u003cli\u003eCompatible with 2015+ Mustang IRS rear differential applications.\u003c\/li\u003e\n\u003cli\u003eMustang IRS stub axle seals and needle bearings are not included and must be purchased separately when required.\u003c\/li\u003e\n\u003cli\u003eDo not assume compatibility with earlier Ford 8.8 axle housings; the Super 8.8 uses a newer bearing and housing configuration.\u003c\/li\u003e\n\u003cli\u003eVerify housing style, cover bolt count, bearing configuration, and axle type before ordering.\u003c\/li\u003e\n\u003cli\u003eProfessional differential setup is recommended because pinion depth, bearing preload, backlash, and gear contact pattern must be established accurately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cb\u003eFAQ\u003c\/b\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n\u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n\u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ch3\u003eWhat is the difference between a Ford 8.8 and a Super 8.8?\u003c\/h3\u003e\n\u003cp\u003eThe Super 8.8 is the newer-generation Ford rear differential used in 2015+ applications and uses updated housing, bearing, and cover designs compared with many earlier Ford 8.8 axles. This kit is specifically for the newer 12-bolt cover Super 8.8 configuration.\u003c\/p\u003e\n\u003ch3\u003eWill this kit fit both the F-150 and Mustang?\u003c\/h3\u003e\n\u003cp\u003eYes, the supplied fitment covers 2015+ F-150 Super 8.8 solid rear axle applications and 2015+ Mustang Super 8.8 IRS differentials. The Mustang IRS uses additional stub axle seals and needle bearings that are sold separately.\u003c\/p\u003e\n\u003ch3\u003eDo I need a master overhaul kit when changing gears in a Ford Super 8.8?\u003c\/h3\u003e\n\u003cp\u003eA master overhaul kit is recommended during a gear change because proper setup depends on fresh bearings, a new crush sleeve, correct shims, and accurate pinion and carrier preload.\u003c\/p\u003e\n\u003ch3\u003eWhy are Mustang IRS stub axle seals and needle bearings sold separately?\u003c\/h3\u003e\n\u003cp\u003eThose components are part of the IRS-specific axle interface rather than the core differential bearing package, and their configuration can vary by Mustang application.\u003c\/p\u003e\n\u003ch3\u003eCan I install a Ford Super 8.8 rebuild kit myself?\u003c\/h3\u003e\n\u003cp\u003eAn experienced builder with the correct setup tools can perform the rebuild, but differential setup requires precise adjustment of pinion depth, pinion preload, carrier preload, backlash, and gear tooth contact pattern. Professional installation is recommended if you are not experienced with ring-and-pinion setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":57726157193382,"sku":"YK F8.8-D","price":447.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/2015-Ford-8.8-maaster-rebuild-kit-1.jpg?v=1792610932","url":"https:\/\/wideopendesign.com\/products\/yukon-ford-8-8in-master-overhaul-kit-2015-f150-mustang-irs","provider":"Wide Open Design","version":"1.0","type":"link"}