{"product_id":"national-3994-axle-differential-bearing","title":"National 3994 Axle Differential Bearing - Rear or Rear Inner","description":"\u003ch2\u003eOverview of National 3994 Axle Differential Bearing\u003c\/h2\u003e\u003cp\u003eThe National 3994 axle differential bearing is engineered for Ford F-250 and F-350 models, providing reliable support for driveline components. This taper bearing cone is designed to meet precise specifications, ensuring proper fit and function in your vehicle's differential assembly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCone bore diameter: 2.6250 inches (66.6750 mm)\u003c\/li\u003e\n\u003cli\u003eCone length: 1.1850 inches (30.0990 mm)\u003c\/li\u003e\n\u003cli\u003eCone radius: 0.2180 inches (5.5370 mm)\u003c\/li\u003e\n\u003cli\u003ePart type: Taper bearing cone\u003c\/li\u003e\n\u003cli\u003eCompatible with Ford F-250 and F-350 axle differentials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThe National 3994 axle differential bearing features a cone bore measuring 2.6250 inches (66.6750 mm), which ensures a precise fit within the differential assembly. The cone length of 1.1850 inches (30.0990 mm) and cone radius of 0.2180 inches (5.5370 mm) are critical dimensions that maintain proper bearing alignment and load distribution. This taper bearing cone is manufactured to meet OEM standards, providing consistent performance and durability for Ford F-250 and F-350 driveline systems.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cp\u003eThis axle differential bearing is specifically designed for use in Ford F-250 and F-350 models, making it suitable for maintenance or repair of the vehicle's differential assembly. It addresses common issues such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExcessive bearing wear causing noise or vibration\u003c\/li\u003e\n\u003cli\u003eImproper bearing fit leading to premature failure\u003c\/li\u003e\n\u003cli\u003eAxle differential play affecting driveline stability\u003c\/li\u003e\n\u003cli\u003eReduced load capacity impacting vehicle performance\u003c\/li\u003e\n\u003cli\u003eCorrosion or damage from extended use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 3994 axle differential bearing, ensure the following:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClean all mating surfaces thoroughly before installation\u003c\/li\u003e\n\u003cli\u003eVerify the cone bore and length dimensions match the vehicle specifications\u003c\/li\u003e\n\u003cli\u003eUse proper tools to avoid damaging the bearing cone during installation\u003c\/li\u003e\n\u003cli\u003eApply appropriate lubrication to the bearing surfaces\u003c\/li\u003e\n\u003cli\u003eCheck for correct preload and alignment after installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational manufactures the 3994 axle differential bearing to meet stringent quality standards, ensuring reliable performance in Ford F-250 and F-350 applications. While specific warranty details may vary, National products typically come with a limited warranty against defects in materials and workmanship. Refer to the product documentation for exact warranty terms.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448191058101,"sku":"BCZK-3994","price":45.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_3994_Fro.jpg?v=1774734517","url":"https:\/\/www.partcatalog.com\/products\/national-3994-axle-differential-bearing","provider":"PartCatalog","version":"1.0","type":"link"}