{"product_id":"dorman-976-637-drive-shaft-rear","title":"Dorman 976-637 Drive Shaft - Rear","description":"\u003ch2\u003eDorman 976-637 Drive Shaft for Express and Savana\u003c\/h2\u003e\u003cp\u003eDorman 976-637 is a complete rear drive shaft assembly for select Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 models. It is pre-balanced for installation and built with new yokes, tubes, and universal joints to support a direct driveline replacement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel shaft construction for driveline strength\u003c\/li\u003e\n\u003cli\u003eRear drive shaft application for select 2017-2018 vans\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 proper fitment\u003c\/li\u003e\n\u003cli\u003e3.5 in shaft diameter and 0.083 in wall thickness\u003c\/li\u003e\n\u003cli\u003eComplete assembly with new yokes, tubes, and U-joints\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft, part number 976-637, is built for rear-position applications on 2017-2018 Chevrolet Express 2500 and Express 3500, as well as 2017-2018 GMC Savana 2500 and Savana 3500 models with a 2-piece shaft assembly. The steel construction, greaseable design, and adjustable overall length help support a precise driveline replacement where the original shaft has worn, vibrated, or been damaged. This part cross-references OE number 23432390 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Drive Shaft Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration from a worn or unbalanced shaft\u003c\/li\u003e\n\u003cli\u003eNoise caused by worn universal joints or yokes\u003c\/li\u003e\n\u003cli\u003eDamage to the original shaft tube or slip yoke\u003c\/li\u003e\n\u003cli\u003eFitment issues after driveline service on rear shaft assemblies\u003c\/li\u003e\n\u003cli\u003eReplacement needs for high-mileage Express and Savana vans\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear driveline configuration before ordering, since this application is for 2-piece shaft assemblies on select Express and Savana vans. Confirm shaft length, slip yoke style, and mounting points against the original part number 976-637 application. Because the assembly is pre-balanced, avoid altering the shaft before installation and inspect related driveline components for wear during service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft as a complete replacement assembly with new yokes, tubes, and universal joints to support consistent fit and function. The part is engineered for the specified Chevrolet Express and GMC Savana applications and cross-references OE number 23432390.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52802584543413,"sku":"BKKY-976-637","price":914.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_976637_Fro.jpg?v=1784097277","url":"https:\/\/www.partcatalog.com\/products\/dorman-976-637-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}