{"product_id":"dorman-966-521-drive-shaft-rear","title":"Dorman 966-521 Drive Shaft - Rear","description":"\u003ch2\u003eComplete Drive Shaft Assembly\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft assembly is built as a complete replacement for the rear driveline on compatible Ford trucks. It is pre-balanced and supplied ready to install, with new yokes, tubes, constant velocity joints, and universal joints already assembled.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete drive shaft assembly for standard replacement service\u003c\/li\u003e\n\u003cli\u003ePre-balanced for smoother driveline operation\u003c\/li\u003e\n\u003cli\u003e100% new yokes, tubes, CV joints, and universal joints\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with a 3.5-inch shaft diameter\u003c\/li\u003e\n\u003cli\u003ePre-greased with a grease fitting included\u003c\/li\u003e\n\u003cli\u003ePhased design with a slip yoke and 1-inch maximum slip\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eBuilt for driveline service, Dorman 966-521 replaces the original rear drive shaft assembly with a direct-fit design that simplifies repair work. The steel shaft measures 92.75 inches in drive shaft length and uses bolt-on ends for straightforward installation. Its standard replacement grade and complete assembly format make it a practical solution when the original shaft is worn, damaged, or out of balance. This part cross-references Ford OE numbers F81Z4R602HS and F81Z4R602HSE for the same application. For Ford F-350 Super Duty rear driveline service, 966-521 provides the key components needed in one assembled unit.\u003c\/p\u003e\u003ch2\u003eCommon Problems It Can Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVibration caused by an out-of-balance drive shaft\u003c\/li\u003e\n\u003cli\u003eNoise from worn universal joints or CV joints\u003c\/li\u003e\n\u003cli\u003eDriveline clunk from damaged yokes or shaft wear\u003c\/li\u003e\n\u003cli\u003eService issues from a bent, corroded, or fatigued shaft\u003c\/li\u003e\n\u003cli\u003eFitment problems when the original assembly is no longer serviceable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 1999-2000 Ford F-350 Super Duty, rear, with single rear wheel (SRW). Verify compressed length, flange style, and slip travel before installation. Confirm the phased orientation matches the original driveline setup to maintain proper balance and operation. Use the existing vehicle specifications to confirm application details before replacing the shaft.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft as a standard replacement assembly with new major components and pre-balanced construction for dependable service.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":53556049248437,"sku":"BKKY-966-521","price":947.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_966521_FRO.jpg?v=1792392082","url":"https:\/\/www.partcatalog.com\/products\/dorman-966-521-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}