{"product_id":"dorman-986-503-drive-shaft-rear","title":"Dorman 986-503 Drive Shaft - Rear","description":"\u003ch2\u003eDorman 986-503 Drive Shaft Overview\u003c\/h2\u003e\u003cp\u003eDorman 986-503 is a complete drive shaft assembly for driveline repair where a direct replacement is needed. It arrives pre-balanced and built with new yokes, tubes, constant velocity joints, and universal joints to simplify service on compatible vehicles, including Mercedes-Benz applications referenced by the cross-reference numbers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\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 and tubes\u003c\/li\u003e\n\u003cli\u003eNew universal joints included\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction\u003c\/li\u003e\n\u003cli\u003e68.75 in. compressed drive shaft length\u003c\/li\u003e\n\u003cli\u003e2.5 in. shaft diameter with 0.065 in. wall thickness\u003c\/li\u003e\n\u003cli\u003eBolt-on end 1 and bolt-on end 2 connection types\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade\u003c\/li\u003e\n\u003cli\u003ePart number 986-503 for catalog and service matching\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft is built as a direct-service driveline component for vehicles that require a bolt-on replacement assembly. The steel shaft uses a 68.75 in. compressed length, 2.5 in. diameter, and 0.065 in. wall thickness, with no slip yoke and no overall length adjustment. Because the assembly is pre-balanced and supplied with new yokes, tubes, and universal joints, it supports a cleaner replacement process when servicing worn driveline components on Mercedes-Benz models that use this application. The part number 986-503 is also referenced by 1154103706 and 1155105501 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Drive Shaft Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration caused by a worn or out-of-balance shaft\u003c\/li\u003e\n\u003cli\u003eClunking or driveline noise from worn universal joints\u003c\/li\u003e\n\u003cli\u003eService issues related to damaged yokes or tube wear\u003c\/li\u003e\n\u003cli\u003eLoss of smooth power transfer through the driveline\u003c\/li\u003e\n\u003cli\u003eReplacement needs where a bolt-on drive shaft assembly is required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the compressed length, bolt-on end configuration, and shaft dimensions before installation. Confirm the vehicle’s driveline layout and compare the existing assembly to part number 986-503 to ensure the correct application. Because this is a complete drive shaft assembly, inspect mating components, flange surfaces, and related driveline hardware during service to help prevent repeat vibration or noise concerns.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this as a standard replacement drive shaft assembly with new core components and pre-balanced construction for service readiness. The design focuses on restoring driveline function with the specified steel shaft, new universal joints, and bolt-on fitment details for the intended application.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52808213594293,"sku":"BKKY-986-503","price":696.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_986503_Fro.jpg?v=1784183101","url":"https:\/\/www.partcatalog.com\/products\/dorman-986-503-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}