{"product_id":"dorman-986-684-drive-shaft-rear","title":"Dorman 986-684 Drive Shaft - Rear","description":"\u003ch2\u003eDorman 986-684 Rear Drive Shaft\u003c\/h2\u003e\u003cp\u003eDorman 986-684 is a complete rear drive shaft assembly for select Chevrolet C20, Chevrolet C30, GMC C2500, and GMC C3500 applications. It arrives pre-balanced and ready to install with new yokes, steel tubing, constant velocity components, and universal joints for a direct replacement approach.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eComplete drive shaft assembly for rear-position applications\u003c\/li\u003e\n\u003cli\u003ePre-balanced for installation consistency\u003c\/li\u003e\n\u003cli\u003e100% new yokes, tubes, CV joints, and universal joints\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with 3-inch shaft diameter\u003c\/li\u003e\n\u003cli\u003ePre-greased with grease fitting included\u003c\/li\u003e\n\u003cli\u003eSlip yoke included; overall length adjustable\u003c\/li\u003e\n\u003cli\u003ePhased at 0 degrees\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade\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 1975-1986 Chevrolet C20 and Chevrolet C30, plus 1979-1986 GMC C2500 and GMC C3500 applications. It measures 71 inches collapsed flange face to flange face, with a 72.5-inch drive shaft length and 0.083-inch wall thickness. The assembly uses universal joints at both ends, includes a slip yoke, and is configured as a multi-piece shaft with no CV joints included. Part number 986-684 is also referenced for interchange with 7815487 and 7834052.\u003c\/p\u003e\u003cp\u003eFor buyers searching for a rear drive shaft for Chevrolet C20, Chevrolet C30, GMC C2500, or GMC C3500, Dorman 986-684 provides a direct replacement option built around the original driveline layout. It is a steel, pre-greased assembly intended for standard replacement service where a complete shaft swap is preferred over rebuilding individual driveline components.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration from a worn or out-of-balance shaft\u003c\/li\u003e\n\u003cli\u003eClunking or driveline noise from worn universal joints\u003c\/li\u003e\n\u003cli\u003eExcess play from damaged yokes or slip components\u003c\/li\u003e\n\u003cli\u003eService issues caused by corrosion or tube wear\u003c\/li\u003e\n\u003cli\u003eReplacement needs after shaft damage or failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify rear application, wheel configuration, and measured length before installation. This assembly is pre-balanced, but driveline angles, flange condition, and mounting surfaces should be checked during service. Confirm the vehicle uses the listed rear fitment before ordering. Fits 1975-1986 Chevrolet C20, rear; Fits 1975-1986 Chevrolet C30, rear; Fits 1979-1986 GMC C2500, rear; Fits 1979-1986 GMC C3500, rear with Single Rear Wheel (SRW).\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this as a standard replacement drive shaft assembly with new major driveline components and pre-balanced construction for consistent service installation.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52808218476725,"sku":"BKKY-986-684","price":1056.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_986684_Fro.jpg?v=1784183837","url":"https:\/\/www.partcatalog.com\/products\/dorman-986-684-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}