{"product_id":"national-28580-manual-transmission-input-shaft-bearing","title":"National 28580 Manual Transmission Input Shaft Bearing","description":"\u003ch2\u003eOverview of National 28580 Manual Transmission Input Shaft Bearing\u003c\/h2\u003e\u003cp\u003eThe National 28580 manual transmission input shaft bearing is engineered for reliable performance in a range of vehicles including Audi, Chevrolet, Ferrari, Ford, GMC, and Lamborghini models. Designed as a taper bearing cone, this part supports smooth transmission operation by reducing friction on the input shaft.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCone bore diameter: 2.0000 inches (50.8 mm)\u003c\/li\u003e\n\u003cli\u003eCone length: 1.0000 inch (25.4 mm)\u003c\/li\u003e\n\u003cli\u003eCone radius: 0.1400 inch (3.556 mm)\u003c\/li\u003e\n\u003cli\u003ePart type: Taper bearing cone for manual transmissions\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple truck and sports car models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications and Attributes\u003c\/h2\u003e\u003cp\u003eThe National 28580 bearing features a precise cone bore of 2 inches (50.8 mm), ensuring a secure fit on the input shaft. Its 1-inch (25.4 mm) cone length and 0.14-inch (3.556 mm) cone radius are designed to maintain optimal alignment and load distribution within the transmission assembly. This taper bearing cone is critical for reducing wear and maintaining smooth rotational movement in manual transmission systems.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis input shaft bearing is compatible with a variety of vehicles, including Ford F-100, F-150, F-250, F-350, and their Super Duty variants, Chevrolet Silverado 2500 HD and 3500, GMC Sierra 2500 HD and 3500, Audi R8, Ferrari Testarossa, and Lamborghini Gallardo models. The part number 28580 ensures correct identification for these specific applications.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by National 28580 Bearing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive input shaft play causing gear misalignment\u003c\/li\u003e\n\u003cli\u003eNoise or roughness during manual transmission operation\u003c\/li\u003e\n\u003cli\u003ePremature bearing wear due to improper fit or lubrication\u003c\/li\u003e\n\u003cli\u003eTransmission input shaft vibration or instability\u003c\/li\u003e\n\u003cli\u003eReduced transmission efficiency and increased friction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 28580 bearing, ensure the cone bore matches the input shaft diameter precisely to avoid misalignment. Proper lubrication is essential to extend bearing life and maintain smooth operation. Use appropriate tools to press the bearing into place without damaging the cone surface. Verify fitment compatibility with the vehicle’s manual transmission model before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eNational bearings are manufactured to meet industry standards for durability and performance. The 28580 manual transmission input shaft bearing undergoes rigorous quality control to ensure dimensional accuracy and material integrity. Please consult National’s warranty policy for specific coverage details related to this part.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":43448260100277,"sku":"BCZK-28580","price":54.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_28580_Ang_9748c56a-1d8d-47de-b9c8-e3b13cc2ffa9.jpg?v=1774734575","url":"https:\/\/www.partcatalog.com\/products\/national-28580-manual-transmission-input-shaft-bearing","provider":"PartCatalog","version":"1.0","type":"link"}