{"product_id":"yukon-dana-80-master-overhaul-kit-4-125-in-od-bearing","title":"Yukon Dana 80 Rear Master Overhaul Kit- 4.125\" Pinion Bearing","description":"\u003cp\u003eThe \u003cstrong\u003eDana 80 Rear Master Overhaul Kit\u003c\/strong\u003e provides the bearings, races, seal, shims, and setup hardware needed for a complete Dana 80 rear differential rebuild. This version is specifically designed for housings using a \u003cstrong\u003e4.125\" outer-diameter inner pinion bearing race\u003c\/strong\u003e and includes Timken bearing components for dependable service in heavy-duty truck, towing, commercial, and off-road applications.\u003c\/p\u003e\n\n\u003cp\u003eBecause Dana 80 axles were produced with multiple pinion bearing configurations, verifying the inner pinion bearing race size is critical before ordering. This kit uses the HM807046 \/ HM807010 inner pinion bearing set and includes the hardware and setup materials required to establish proper pinion preload, carrier preload, backlash, and ring-and-pinion contact pattern during assembly.\u003c\/p\u003e\n\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\u003eOil Baffles and Slingers\u003c\/li\u003e\n\u003cli\u003eThread Locker\u003c\/li\u003e\n\u003cli\u003eGear Marking Compound with Brush\u003c\/li\u003e\n\u003cli\u003eSilicone Sealant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\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\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\u003eDana 80 Rear Differential\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\u003eInner Pinion Bearing Race OD\u003c\/td\u003e\n\u003ctd\u003e4.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Pinion Bearing Set\u003c\/td\u003e\n\u003ctd\u003eHM807046 \/ HM807010\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 Spline Compatibility\u003c\/td\u003e\n\u003ctd\u003e35-Spline and 37-Spline Applications, Depending on Axle\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\u003ePinion Nut\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Baffles and Slingers\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, Gear Marking Compound with Brush, and Silicone Sealant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003chr\u003e\n\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\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\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC3500\u003c\/td\u003e\n\u003ctd\u003e1992–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC3500HD\u003c\/td\u003e\n\u003ctd\u003e1991–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003e1992–1995\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eK3500\u003c\/td\u003e\n\u003ctd\u003e1990–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eP30\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eB3500\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 2500\u003c\/td\u003e\n\u003ctd\u003e1994–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 2500 Van\u003c\/td\u003e\n\u003ctd\u003e1999–2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eRam 3500\u003c\/td\u003e\n\u003ctd\u003e1994–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eE-350 Econoline\u003c\/td\u003e\n\u003ctd\u003e1988–1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-350\u003c\/td\u003e\n\u003ctd\u003e1988–1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-Super Duty\u003c\/td\u003e\n\u003ctd\u003e1990–1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC3500\u003c\/td\u003e\n\u003ctd\u003e1992–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eC3500HD\u003c\/td\u003e\n\u003ctd\u003e2001–2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eK3500\u003c\/td\u003e\n\u003ctd\u003e1992–2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eP3500\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits Dana 80 rear differential applications only.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for housings using a 4.125\" OD inner pinion bearing race.\u003c\/li\u003e\n\u003cli\u003eUses HM807046 \/ HM807010 inner pinion bearing components.\u003c\/li\u003e\n\u003cli\u003eCompatible with 35-spline and 37-spline axle configurations depending on application.\u003c\/li\u003e\n\u003cli\u003eVehicle year and model do not guarantee fitment because Dana 80 axles were produced with multiple bearing and housing configurations.\u003c\/li\u003e\n\u003cli\u003eVerify the actual axle model, inner pinion bearing race OD, spline count, and differential configuration before ordering.\u003c\/li\u003e\n\u003cli\u003eAxle swaps are common in heavy-duty and off-road builds, so identify the axle itself rather than relying only on the vehicle application.\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\n\u003chr\u003e\n\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\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ch3\u003eHow do I know which Dana 80 master overhaul kit I need?\u003c\/h3\u003e\n\u003cp\u003eThe inner pinion bearing race size is one of the key identifiers. This kit is specifically for Dana 80 housings using a 4.125\" outer-diameter inner pinion bearing race and the HM807046 \/ HM807010 bearing set.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is included in a Dana 80 master overhaul kit?\u003c\/h3\u003e\n\u003cp\u003eThis kit includes the carrier and pinion bearings and races, pinion seal, shims, ring gear bolts, pinion nut, oil baffles and slingers, thread locker, gear marking compound, and silicone sealant needed for a complete differential rebuild and setup.\u003c\/p\u003e\n\n\u003ch3\u003eWill this kit fit both 35-spline and 37-spline Dana 80 axles?\u003c\/h3\u003e\n\u003cp\u003eIt can be compatible with both 35-spline and 37-spline Dana 80 applications, but spline count alone does not determine kit fitment. The housing and pinion bearing configuration must also match.\u003c\/p\u003e\n\n\u003ch3\u003eWhy does the inner pinion bearing size matter on a Dana 80?\u003c\/h3\u003e\n\u003cp\u003eDana 80 axles use more than one pinion bearing configuration. The inner race must match the machined bore in the housing, so installing the wrong bearing set can prevent proper assembly and pinion support.\u003c\/p\u003e\n\n\u003ch3\u003eDo I need a master overhaul kit when installing new Dana 80 gears?\u003c\/h3\u003e\n\u003cp\u003eA complete overhaul kit is recommended when changing gears or rebuilding a high-mileage axle because accurate pinion preload, carrier preload, backlash, and tooth contact depend on fresh bearings and correct setup hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003chr\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":57726156832934,"sku":"YK D80-A","price":638.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/28f4ccbd9ad5c06265901028c33accfbL.jpg?v=1792610930","url":"https:\/\/wideopendesign.com\/products\/yukon-dana-80-master-overhaul-kit-4-125-in-od-bearing","provider":"Wide Open Design","version":"1.0","type":"link"}