{"product_id":"national-28682-automatic-transmission-differential-bearing","title":"National 28682 Automatic Transmission Differential Bearing","description":"\u003ch2\u003eOverview of National 28682 Automatic Transmission Differential Bearing\u003c\/h2\u003e\u003cp\u003eThe National 28682 automatic transmission differential bearing is engineered for reliable performance in select heavy-duty and passenger vehicles. Designed with precise dimensions, this taper bearing cone supports smooth transmission operation in models such as the Ford F-350, Ram 1500, and Cadillac Eldorado.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: National\u003c\/li\u003e\n\u003cli\u003ePart Number: 28682\u003c\/li\u003e\n\u003cli\u003eCategory: Transmission Bearings\u003c\/li\u003e\n\u003cli\u003eType: Automatic Transmission Differential Bearing (Taper Bearing Cone)\u003c\/li\u003e\n\u003cli\u003eCone Bore Diameter: 2.2500 inches (57.15 mm)\u003c\/li\u003e\n\u003cli\u003eCone Length: 0.9688 inches (24.608 mm)\u003c\/li\u003e\n\u003cli\u003eCone Radius: 0.1400 inches (3.556 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Details\u003c\/h2\u003e\u003cp\u003eThis National 28682 bearing features a taper bearing cone design optimized for automatic transmission differentials. The cone bore measures 2.2500 inches (57.15 mm), providing a precise fit for compatible transmission components. With a cone length of 0.9688 inches (24.608 mm) and a cone radius of 0.1400 inches (3.556 mm), the bearing ensures proper load distribution and rotational stability under operational stresses.\u003c\/p\u003e\u003cp\u003eCompatible with a range of vehicles including Dodge Ram 2500, Plymouth B3500, Oldsmobile Toronado, and Ford W350, this bearing supports the drivetrain's differential assembly by reducing friction and wear during torque transfer.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis automatic transmission differential bearing is compatible with the following makes and models:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCadillac Eldorado, Toronado\u003c\/li\u003e\n\u003cli\u003eDodge Ram 1500, 2500, 3500, B300, B350, B3500, D250, D300, D350\u003c\/li\u003e\n\u003cli\u003eFord F-350, W250, W300, W350\u003c\/li\u003e\n\u003cli\u003eOldsmobile\u003c\/li\u003e\n\u003cli\u003ePlymouth\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIt is specifically designed for use in automatic transmission differentials requiring a taper bearing cone with the specified dimensions.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by National 28682 Bearing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive transmission noise due to worn differential bearings\u003c\/li\u003e\n\u003cli\u003eUneven wear or damage to transmission differential components\u003c\/li\u003e\n\u003cli\u003eReduced transmission efficiency caused by bearing failure\u003c\/li\u003e\n\u003cli\u003eVibration or rough operation in automatic transmission differentials\u003c\/li\u003e\n\u003cli\u003ePremature wear of transmission gears linked to bearing degradation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the bearing cone bore matches the shaft diameter precisely (2.2500 inches)\u003c\/li\u003e\n\u003cli\u003eClean all mating surfaces before installation to prevent contamination\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the cone radius and length during fitting\u003c\/li\u003e\n\u003cli\u003eVerify correct seating of the bearing cone within the differential assembly\u003c\/li\u003e\n\u003cli\u003eConsult vehicle-specific service manuals for torque specifications and alignment procedures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational transmission bearings are manufactured to meet industry standards for durability and precision. The 28682 part undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to support long-term reliability in automotive transmission applications.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448260231349,"sku":"BCZK-28682","price":37.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_28682_Ang_e22f77de-6623-417c-b67f-c3086b2ef64e.jpg?v=1774734576","url":"https:\/\/www.partcatalog.com\/products\/national-28682-automatic-transmission-differential-bearing","provider":"PartCatalog","version":"1.0","type":"link"}