{"product_id":"luk-gdk321c-axle-differential-bearing-and-seal-kit-rear","title":"Luk GDK321C Axle Differential Bearing and Seal Kit - Rear","description":"\u003ch2\u003eLuK GDK321C Differential Bearing Kit\u003c\/h2\u003e\u003cp\u003eThe LuK GDK321C is a rear axle differential bearing and seal kit for service work on GM and related truck and SUV applications. It brings together OE-quality bearings selected for the specific transmission or differential repair, helping restore smooth operation in the rear differential.\u003c\/p\u003e\u003cp\u003eCompatible With 1999-2010 Chevrolet, GMC, Cadillac, Hummer, Buick, Saab, Isuzu, and related rear differential applications using the standard 8.5\"\/8.6\" setup.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE-quality differential bearings for professional repair\u003c\/li\u003e\n\u003cli\u003eRear axle differential bearing and seal kit format\u003c\/li\u003e\n\u003cli\u003eApplication-specific component selection for the listed vehicles\u003c\/li\u003e\n\u003cli\u003eCross-reference part numbers include SKF SDK321-C and Timken DRK321C\u003c\/li\u003e\n\u003cli\u003ePart number: GDK321C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eLuK GDK321C is built for rear differential service on a wide range of GM trucks, SUVs, and utility vehicles, including Chevrolet Silverado 1500, Tahoe, Suburban 1500, and GMC Sierra 1500 applications. It also covers related platforms such as Cadillac Escalade, Hummer H3, and Buick Rainier when equipped with the standard 8.5\"\/8.6\" rear differential. The kit is assembled with OE-quality bearings chosen for the individual transmission or differential repair, supporting a professional-level rebuild.\u003c\/p\u003e\u003cp\u003eThis part cross-references SKF SDK321-C and Timken DRK321C for the same application. Part number GDK321C is commonly searched for rear differential bearing kit service on Chevrolet Silverado 1500 and GMC Sierra 1500 rear axle repairs.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Repair\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear differential bearing noise\u003c\/li\u003e\n\u003cli\u003eExcessive drivetrain vibration from worn bearings\u003c\/li\u003e\n\u003cli\u003eGear mesh issues caused by bearing wear\u003c\/li\u003e\n\u003cli\u003eLeak-related service needs during differential repair\u003c\/li\u003e\n\u003cli\u003eRestoration of smooth rear axle operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the rear axle is the standard 8.5\"\/8.6\" differential before ordering. Compare the existing bearing and seal arrangement to the vehicle listing, and inspect the housing, gears, and related components during service. Professional installation is recommended for differential repair work to ensure correct setup and bearing preload.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eLuK selects OE-quality components for each specific transmission or differential application, supporting a repair standard suited to professional drivetrain service.\u003c\/p\u003e","brand":"Luk","offers":[{"title":"Default Title","offer_id":52426312450229,"sku":"BBZH-GDK321C","price":161.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/LK_GDK321C_Fro.jpg?v=1777827092","url":"https:\/\/www.partcatalog.com\/products\/luk-gdk321c-axle-differential-bearing-and-seal-kit-rear","provider":"PartCatalog","version":"1.0","type":"link"}