{"product_id":"national-sch-78-drive-axle-shaft-pilot-bearing-front-or-rear","title":"National SCH-78 Drive Axle Shaft Pilot Bearing - Front or Rear","description":"\u003ch2\u003eDrive Axle Shaft Pilot Bearing Overview\u003c\/h2\u003e\u003cp\u003eNational SCH-78 is a needle bearing for driveline service where the application calls for a pilot bearing with OE-style dimensions and construction. It is built with premium materials and engineered to meet OE specifications for a precise service replacement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNeedle bearing design for driveline and axle service\u003c\/li\u003e\n\u003cli\u003eOE-spec engineering for dimensional consistency\u003c\/li\u003e\n\u003cli\u003ePremium material construction from National\u003c\/li\u003e\n\u003cli\u003eJ-type bearing design with a 0.4375 in bore and 0.6875 in outside diameter\u003c\/li\u003e\n\u003cli\u003e0.5000 in width for applications requiring this bearing size\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis drive axle shaft pilot bearing is identified by part number SCH-78 and is used in a wide range of front axle applications across Chevrolet, GMC, Cadillac, and related platforms. Fitment includes front applications for Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, and Chevrolet Tahoe, along with many other trucks, SUVs, and vans that use AAM axle configurations, independent front suspension, and the specified ring gear sizes. The SCH-78 is also cross-referenced to Monroe Shocks \u0026amp; Struts 172286 and Timken SCH78 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn needle bearing in the driveline or axle assembly\u003c\/li\u003e\n\u003cli\u003eRestoring proper shaft support where bearing clearance has increased\u003c\/li\u003e\n\u003cli\u003eAddressing noise or vibration related to bearing wear\u003c\/li\u003e\n\u003cli\u003eCorrecting fitment issues caused by incorrect bearing dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the bearing dimensions, axle configuration, ring gear size, and suspension layout before installation. This part number SCH-78 is listed for specific front and rear applications, so match the vehicle position and notes exactly to the catalog fitment. Confirm the bore, outside diameter, and width against the original bearing before assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNational manufactures this needle bearing with premium materials and OE-spec engineering to support consistent service replacement quality.\u003c\/p\u003e","brand":"National","offers":[{"title":"Default Title","offer_id":53505773469877,"sku":"BCZK-SCH-78","price":16.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NS_SCH78_Fro.jpg?v=1791700974","url":"https:\/\/www.partcatalog.com\/products\/national-sch-78-drive-axle-shaft-pilot-bearing-front-or-rear","provider":"PartCatalog","version":"1.0","type":"link"}