{"product_id":"national-25821-manual-transmission-output-shaft-race","title":"National 25821 Manual Transmission Output Shaft Race","description":"\u003ch2\u003eOverview of National 25821 Manual Transmission Output Shaft Race\u003c\/h2\u003e\u003cp\u003eThe National 25821 manual transmission output shaft race is a precision-engineered taper bearing cup designed for reliable performance in various manual transmission systems. This component is compatible with multiple vehicle makes and models, including Chevrolet Camaro, Ford Mustang, Jeep Cherokee, and Nissan 300ZX, ensuring proper fit and function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCup Bore Diameter: 2.8750 inches (73.0250 mm)\u003c\/li\u003e\n\u003cli\u003eCup Length: 0.7500 inches (19.0500 mm)\u003c\/li\u003e\n\u003cli\u003eCup Radius: 0.0310 inches (0.7870 mm)\u003c\/li\u003e\n\u003cli\u003ePart Type: Manual Transmission Output Shaft Race (Taper Bearing Cup)\u003c\/li\u003e\n\u003cli\u003ePart Number: 25821 by National\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThe National 25821 output shaft race is a taper bearing cup designed to support the manual transmission output shaft by providing a smooth, durable surface for bearing operation. With a cup bore of 2.8750 inches (73.0250 mm) and a cup length of 0.7500 inches (19.0500 mm), this component ensures precise alignment and load distribution within the transmission assembly. The cup radius of 0.0310 inches (0.7870 mm) contributes to the bearing’s ability to handle radial and axial loads effectively, reducing wear and extending transmission life.\u003c\/p\u003e\u003cp\u003eThis part is engineered to meet OEM specifications for a range of vehicles, including Chevrolet Blazer, Dodge Dart, Ford Bronco, GMC Jimmy, Isuzu Amigo, Jeep CJ7, Mercury Cougar, Nissan 280ZX, and Pontiac Firebird. The National 25821 is suitable for manual transmission repairs and rebuilds where the output shaft race requires replacement to restore proper bearing function.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Camaro, Blazer, and S10 models\u003c\/li\u003e\n\u003cli\u003eFord Mustang, Bronco, and F-100 trucks\u003c\/li\u003e\n\u003cli\u003eJeep Cherokee, CJ5, CJ7, and Wagoneer\u003c\/li\u003e\n\u003cli\u003eNissan 280ZX and 300ZX sports cars\u003c\/li\u003e\n\u003cli\u003eDodge Dart and Plymouth models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by National 25821 Output Shaft Race\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive bearing noise or roughness in manual transmission output shaft\u003c\/li\u003e\n\u003cli\u003ePremature bearing wear due to damaged or worn races\u003c\/li\u003e\n\u003cli\u003eTransmission vibration caused by misaligned or deteriorated bearing surfaces\u003c\/li\u003e\n\u003cli\u003eLeaking or failing transmission seals related to bearing failure\u003c\/li\u003e\n\u003cli\u003eDifficulty shifting or abnormal transmission operation linked to output shaft bearing issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the National 25821 output shaft race, ensure the transmission is clean and free of debris to prevent premature wear. Use appropriate tools to press the taper bearing cup evenly into the transmission housing without damaging the cup bore or radius. Verify correct alignment and seating depth according to vehicle-specific service manuals. Proper lubrication of the bearing surfaces during assembly is essential for optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eNational manufactures the 25821 output shaft race to meet or exceed OEM standards for durability and fitment. Each part undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, National products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":51869014229173,"sku":"BCZK-25821","price":21.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_25821_Ang.jpg?v=1774734573","url":"https:\/\/www.partcatalog.com\/products\/national-25821-manual-transmission-output-shaft-race","provider":"PartCatalog","version":"1.0","type":"link"}