{"product_id":"dorman-986-257-drive-shaft-rear","title":"Dorman 986-257 Drive Shaft - Rear","description":"\u003ch2\u003eReliable Drive Shaft Replacement for BMW 545i\u003c\/h2\u003e\u003cp\u003eThe Dorman 986-257 drive shaft is engineered to provide dependable driveline performance for your BMW 545i. Designed with durable steel construction and equipped with universal and CV joints, this drive shaft ensures smooth power transfer and vehicle stability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompressed length of 61.75 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eTriprong end type on one side and CV joint on the other\u003c\/li\u003e\n\u003cli\u003eConstructed from high-strength steel for durability\u003c\/li\u003e\n\u003cli\u003eIncludes universal joints and CV joints for optimal driveline flexibility\u003c\/li\u003e\n\u003cli\u003e2.5-inch shaft diameter with 0.083-inch wall thickness\u003c\/li\u003e\n\u003cli\u003eRegular grade type suitable for standard driving conditions\u003c\/li\u003e\n\u003cli\u003eDoes not include slip yoke or axle nut\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDurable Construction and Design Features\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft (part number 986-257) is built with a 2.5-inch diameter steel shaft, providing the necessary strength to handle torque and rotational forces in the BMW 545i. The triprong end and CV joint end types allow for proper connection to the vehicle’s driveline components, ensuring smooth operation and reduced vibration. Both universal joints and CV joints are included, enhancing flexibility and accommodating suspension movement. The shaft’s 61.75-inch compressed length and 0.083-inch wall thickness are designed to meet OEM specifications for reliable performance.\u003c\/p\u003e\u003ch2\u003eCompatible Applications and Common Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged drive shafts on BMW 545i models\u003c\/li\u003e\n\u003cli\u003eResolves driveline vibrations and noise caused by failing joints\u003c\/li\u003e\n\u003cli\u003eAddresses issues with uneven power delivery or binding in the driveline\u003c\/li\u003e\n\u003cli\u003eRestores proper connection between transmission and differential\u003c\/li\u003e\n\u003cli\u003eImproves vehicle stability and handling by maintaining driveline integrity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the vehicle is securely lifted and supported before beginning installation. Verify the drive shaft length and end types match the original component. Since this drive shaft does not include a slip yoke or axle nut, reuse existing hardware or source separately as needed. Properly torque all fasteners to manufacturer specifications to avoid driveline imbalance or premature wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eDorman manufactures this drive shaft to meet industry standards for fit and function. While no specific warranty details are provided, Dorman parts typically undergo quality checks to ensure durability and performance. Using the correct part number 986-257 guarantees compatibility with BMW 545i models, supporting reliable driveline operation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52114464014517,"sku":"BKKY-986-257","price":812.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_986257_Fro.jpg?v=1775160834","url":"https:\/\/www.partcatalog.com\/products\/dorman-986-257-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}