{"product_id":"dorman-946-978-drive-shaft-rear","title":"Dorman 946-978 Drive Shaft - Rear","description":"\u003ch2\u003eBMW 525i Rear Drive Shaft Assembly\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft assembly is built for 1989-1990 BMW 525i rear applications and is supplied as a complete replacement unit. Part number 946-978 arrives pre-balanced with new yokes, tubes, CV joints, and universal joints for a direct driveline service solution.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1989-1990 BMW 525i, rear\u003c\/li\u003e\n\u003cli\u003eComplete drive shaft assembly for driveline replacement\u003c\/li\u003e\n\u003cli\u003ePre-balanced for installation readiness\u003c\/li\u003e\n\u003cli\u003e100% new yokes, tubes, constant velocity joints, and universal joints\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction\u003c\/li\u003e\n\u003cli\u003eOverall length adjustable\u003c\/li\u003e\n\u003cli\u003eDrive shaft length: 62.75 in\u003c\/li\u003e\n\u003cli\u003eShaft diameter: 2.5 in\u003c\/li\u003e\n\u003cli\u003eWall thickness: 0.083 in\u003c\/li\u003e\n\u003cli\u003ePart number 946-978\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDorman 946-978 is a rear drive shaft assembly for the BMW 525i that replaces the original driveline component with a complete, ready-to-install unit. The steel shaft uses new CV joints and universal joints, along with new yokes and tubes, to provide a full assembly rather than a partial rebuild. Its adjustable overall length helps support proper driveline fitment during replacement service on 1989-1990 BMW 525i rear models. This part cross-references BMW 26111226274 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVibration from a worn or out-of-balance drive shaft\u003c\/li\u003e\n\u003cli\u003eClunking or driveline noise from worn joints\u003c\/li\u003e\n\u003cli\u003eExcess play caused by damaged yokes or tubes\u003c\/li\u003e\n\u003cli\u003eDriveline service needs on a rear BMW 525i\u003c\/li\u003e\n\u003cli\u003eReplacement of a shaft with worn CV or universal joints\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm rear application fitment before installation on your BMW 525i. Verify overall length, shaft diameter, and driveline alignment against the original part before removal. Inspect surrounding driveline components, mounts, and fasteners during service to ensure the replacement shaft installs correctly and operates smoothly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft assembly as a complete replacement unit with new internal and external driveline components. The assembly is pre-balanced before shipment to support proper operation after installation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798269751477,"sku":"BKKY-946-978","price":865.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946978_Fro.jpg?v=1784010261","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-978-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}