{"product_id":"dorman-946-612-drive-shaft-rear","title":"Dorman 946-612 Drive Shaft - Rear","description":"\u003ch2\u003eComplete Rear Driveshaft Assembly\u003c\/h2\u003e\u003cp\u003eDorman 946-612 is a complete rear drive shaft assembly built for direct replacement service. It arrives pre-balanced and ready to install, with 100% new yokes, tubes, constant velocity (CV) joints, and universal joints for a full driveline repair on compatible applications.\u003c\/p\u003e\u003cp\u003eFor drivers searching for a rear driveshaft replacement for Ford F-250 Super Duty or Ford F-350 Super Duty applications, this assembly provides the core components needed to restore driveline function without rebuilding the shaft. The steel construction, 3.5-inch shaft diameter, and adjustable overall length support proper fitment on the listed application.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eComplete rear drive shaft assembly for driveline repair\u003c\/li\u003e\n\u003cli\u003ePre-balanced for installation readiness\u003c\/li\u003e\n\u003cli\u003e100% new yokes, tubes, CV joints, and universal joints\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with regular grade type\u003c\/li\u003e\n\u003cli\u003e3.5-inch shaft diameter\u003c\/li\u003e\n\u003cli\u003e77.85-inch drive shaft length\u003c\/li\u003e\n\u003cli\u003e0.083-inch wall thickness\u003c\/li\u003e\n\u003cli\u003eGreaseable design for service access\u003c\/li\u003e\n\u003cli\u003eOverall length adjustable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDorman 946-612 is a rear driveshaft assembly engineered as a direct replacement for the original driveline component on the listed Ford truck application. It is built from steel and supplied as a complete assembly, which helps simplify replacement when the existing shaft has wear, vibration, or joint-related damage. The greaseable design supports routine maintenance, while the adjustable overall length helps with final fitment during installation. This part cross-references Ford OE number 3C3Z4R602AR for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration caused by worn joints or imbalance\u003c\/li\u003e\n\u003cli\u003eClunking or driveline noise from damaged universal joints\u003c\/li\u003e\n\u003cli\u003eExcess play from worn CV joint components\u003c\/li\u003e\n\u003cli\u003eCorrosion or structural wear in the original steel shaft\u003c\/li\u003e\n\u003cli\u003eFitment issues after replacement of a damaged rear driveshaft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s rear driveshaft dimensions, flange configuration, and application details before installation. Because the shaft is adjustable overall length, final positioning should be checked during installation to confirm proper driveline alignment and smooth operation. Inspect related driveline components, including mounts and companion flanges, for wear before completing the repair.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eThis Dorman driveshaft assembly is pre-balanced and built with all-new yokes, tubes, CV joints, and universal joints to support consistent replacement quality. It is a practical choice for Ford F-250 Super Duty and Ford F-350 Super Duty rear driveshaft service where the original shaft requires replacement.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798261625013,"sku":"BKKY-946-612","price":993.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946612_Generic.jpg?v=1784008856","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-612-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}