{"product_id":"national-307-automatic-transmission-extension-housing-bearing","title":"National 307 Automatic Transmission Extension Housing Bearing","description":"\u003ch2\u003eOverview of National 307 Automatic Transmission Extension Housing Bearing\u003c\/h2\u003e\u003cp\u003eThe National 307 Automatic Transmission Extension Housing Bearing is engineered to provide reliable support and smooth operation for your vehicle's transmission system. Designed as a single row radial ball bearing, it ensures precise fitment and durability for various makes and models including Ford F-150, Chevrolet Blazer, and Dodge Ram 1500.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSingle row radial ball bearing design\u003c\/li\u003e\n\u003cli\u003eInner race bore diameter: 1.378 inches (35.000 mm)\u003c\/li\u003e\n\u003cli\u003eOuter race outside diameter: 3.150 inches (80.000 mm)\u003c\/li\u003e\n\u003cli\u003eWidth: 0.827 inches (21.000 mm)\u003c\/li\u003e\n\u003cli\u003eInner and outer race radius: 0.060 inches (1.520 mm)\u003c\/li\u003e\n\u003cli\u003eSeries 300, Type A-1 bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Design Details\u003c\/h2\u003e\u003cp\u003eThis National 307 bearing features a precise bore size of 1.378 inches (35 mm) to fit the automatic transmission extension housing securely. The single row radial design supports radial loads effectively, while the ball bearing construction reduces friction and wear. Both the inner and outer races have a width of 0.827 inches (21 mm) and a radius of 0.060 inches (1.52 mm), ensuring consistent performance under operating conditions. The outer diameter measures 3.150 inches (80 mm), making it compatible with a range of transmission housings.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis bearing is compatible with a variety of vehicles, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFord F-150, Expedition, and Lincoln Navigator\u003c\/li\u003e\n\u003cli\u003eChevrolet Blazer, K10 Suburban, and Silverado 1500\u003c\/li\u003e\n\u003cli\u003eDodge Ram 1500, 2500, 3500, and Power Ram 50\u003c\/li\u003e\n\u003cli\u003eJeep Wagoneer and CJ5\u003c\/li\u003e\n\u003cli\u003eHonda Passport and Acura models\u003c\/li\u003e\n\u003cli\u003eIsuzu Amigo, Rodeo, and Trooper\u003c\/li\u003e\n\u003cli\u003eMitsubishi Montero and Montero Sport\u003c\/li\u003e\n\u003cli\u003eGMC and Chrysler Town \u0026amp; Country\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse the National 307 bearing when replacing worn or damaged automatic transmission extension housing bearings in these vehicles to maintain proper transmission function.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by National 307 Bearing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive transmission noise due to worn bearings\u003c\/li\u003e\n\u003cli\u003eTransmission extension housing misalignment\u003c\/li\u003e\n\u003cli\u003ePremature bearing wear causing transmission performance issues\u003c\/li\u003e\n\u003cli\u003eVibration or rough operation in automatic transmission\u003c\/li\u003e\n\u003cli\u003ePreventing further damage to transmission components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the transmission extension housing is clean and free of debris before installing the National 307 bearing. Use appropriate tools to press the bearing into place without damaging the races or balls. Verify the bearing is seated evenly and rotates smoothly before reassembling the transmission. Consult vehicle-specific service manuals for torque specifications and detailed installation procedures.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational bearings are manufactured to meet industry standards for durability and precision. The 307 bearing is part of the Series 300 line, known for consistent quality in automotive transmission applications. While specific warranty details are not provided, National products typically come with manufacturer-backed quality assurance to support reliable vehicle operation.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":51869013049525,"sku":"BCZK-307","price":47.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_307_Ang.jpg?v=1774734489","url":"https:\/\/www.partcatalog.com\/products\/national-307-automatic-transmission-extension-housing-bearing","provider":"PartCatalog","version":"1.0","type":"link"}