{"product_id":"dorman-946-638-drive-shaft-rear","title":"Dorman 946-638 Drive Shaft - Rear","description":"\u003ch2\u003eComplete Rear Driveshaft for Ford F-350 Super Duty\u003c\/h2\u003e\u003cp\u003eDorman 946-638 is a complete drive shaft assembly for select rear applications on the Ford F-350 Super Duty. It arrives pre-balanced and ready to install, with new yokes, steel tubing, a slip yoke, and new universal joints for a direct replacement approach.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1999-2001 Ford F-350 Super Duty, rear, with dual rear wheels (DRW)\u003c\/li\u003e\n\u003cli\u003eFits 2002 Ford F-350 Super Duty, rear, with dual rear wheels (DRW), to 1\/06\/02\u003c\/li\u003e\n\u003cli\u003ePre-balanced assembly for replacement service\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with 3.5 in shaft diameter and 0.083 in wall thickness\u003c\/li\u003e\n\u003cli\u003eTransmission yoke at one end and U-joint at the other\u003c\/li\u003e\n\u003cli\u003eSlip yoke included\u003c\/li\u003e\n\u003cli\u003eGreaseable drive shaft design\u003c\/li\u003e\n\u003cli\u003eOverall length adjustable for application-specific fitment\u003c\/li\u003e\n\u003cli\u003eUniversal joints included; CV joints not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft assembly is built for rear driveline service on the Ford F-350 Super Duty and is engineered as a complete replacement unit rather than a rebuild. The assembly uses 100% new yokes, tubes, and universal joints, and it is pre-balanced to reduce the need for additional setup before installation. Dorman 946-638 is a practical choice when replacing a worn, damaged, or vibration-prone driveshaft on DRW-equipped trucks.\u003c\/p\u003e\u003cp\u003eThis part cross-references Ford OE part number F81Z4R602ZZ for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration at speed\u003c\/li\u003e\n\u003cli\u003eClunking or looseness from worn U-joints\u003c\/li\u003e\n\u003cli\u003eDamage to the original shaft tube or yokes\u003c\/li\u003e\n\u003cli\u003eNoise caused by driveline imbalance\u003c\/li\u003e\n\u003cli\u003eService issues from a worn slip yoke or shaft assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear DRW fitment and the 2002 cutoff date before ordering. Confirm compressed length, overall length, and driveline configuration against the original shaft to ensure proper installation on your Ford F-350 Super Duty. Because this assembly is greaseable, follow standard lubrication intervals after installation and inspect related driveline components for wear.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft as a complete replacement assembly with new structural and joint components, pre-balanced for installation readiness. Part number 946-638 is built to replace the original rear driveshaft application listed above.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798262411445,"sku":"BKKY-946-638","price":968.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946638_Fro.jpg?v=1784009007","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-638-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}