{"product_id":"dorman-946-661-drive-shaft-rear","title":"Dorman 946-661 Drive Shaft - Rear","description":"\u003ch2\u003eFord F-350 Super Duty Rear Driveshaft\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft assembly is built for rear applications on the 2008-2010 Ford F-350 Super Duty with Single Rear Wheel and Extended Chassis Cab configurations. Part number 946-661 is a direct replacement option for restoring driveline function with a pre-balanced assembly and new yokes, tubes, and joints.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2008-2010 Ford F-350 Super Duty, rear, w\/Single Rear Wheel (SRW); Extended Chassis Cab\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with a 3.5 in diameter\u003c\/li\u003e\n\u003cli\u003e97.52 in drive shaft length with adjustable overall length\u003c\/li\u003e\n\u003cli\u003eSlip yoke included for proper driveline connection\u003c\/li\u003e\n\u003cli\u003eGreaseable drive shaft design for serviceability\u003c\/li\u003e\n\u003cli\u003eRegular grade replacement assembly\u003c\/li\u003e\n\u003cli\u003ePre-balanced for installation readiness\u003c\/li\u003e\n\u003cli\u003ePart number 946-661\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDorman 946-661 is a complete rear drive shaft assembly for the Ford F-350 Super Duty, engineered for 2008-2010 models with SRW and Extended Chassis Cab fitment. The steel shaft measures 3.5 inches in diameter, 97.52 inches in length, and 0.083 inches in wall thickness, with an adjustable overall length to match the application. This assembly includes a slip yoke and is greaseable for routine maintenance. It is a practical replacement for driveline service on the Ford F-350 Super Duty when the original shaft is worn, damaged, or out of balance. This part cross-references Ford (e.g., 7C3Z4R602EP) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration from a worn or unbalanced shaft\u003c\/li\u003e\n\u003cli\u003eNoise from damaged yokes or universal joints\u003c\/li\u003e\n\u003cli\u003eBinding or rough operation in the rear driveline\u003c\/li\u003e\n\u003cli\u003eLoss of driveline smoothness after shaft wear or impact damage\u003c\/li\u003e\n\u003cli\u003eService issues related to a non-greaseable or worn replacement shaft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear application fitment before installation: 2008-2010 Ford F-350 Super Duty, rear, w\/Single Rear Wheel (SRW); Extended Chassis Cab. Confirm shaft length, slip yoke engagement, and driveline alignment before final tightening. Inspect related driveline components, including mounts and differential connection points, during replacement. Part number 946-661 is supplied as a ready-to-install assembly, but vehicle-specific measurements should still be checked against the original unit.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft as a complete replacement assembly with new yokes, tubes, constant velocity joints, and universal joints, and it is pre-balanced for installation readiness. The design focuses on restoring proper driveline operation for the Ford F-350 Super Duty application listed above.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798263558325,"sku":"BKKY-946-661","price":1149.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946661_Fro.jpg?v=1784009151","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-661-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}