{"product_id":"dorman-946-346-drive-shaft-rear","title":"Dorman 946-346 Drive Shaft - Rear","description":"\u003ch2\u003eDorman 946-346 Drive Shaft for Silverado and Sierra HD\u003c\/h2\u003e\u003cp\u003eThe Dorman 946-346 drive shaft is a complete rear driveline assembly for select Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD applications. It is pre-balanced for installation and built with new yokes, tubes, CV joints, and universal joints to support a direct replacement on the correct rear 2-piece shaft setup.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel drive shaft construction for strength in heavy-duty use\u003c\/li\u003e\n\u003cli\u003ePre-balanced assembly for smoother operation after replacement\u003c\/li\u003e\n\u003cli\u003e100% new yokes, tubes, constant velocity joints, and universal joints\u003c\/li\u003e\n\u003cli\u003eGreaseable drive shaft design for serviceability\u003c\/li\u003e\n\u003cli\u003eAdjustable overall length for proper driveline setup\u003c\/li\u003e\n\u003cli\u003e82.12 in drive shaft length with 0.083 in wall thickness\u003c\/li\u003e\n\u003cli\u003ePart number 946-346 for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft is built for rear applications on 2011-2013 Chevrolet Silverado 2500 HD, rear, 2 Piece Shaft Assembly; 2015-2016 Chevrolet Silverado 2500 HD, rear, 2 Piece Shaft Assembly; 2011-2013 GMC Sierra 2500 HD, rear, 2 Piece Shaft Assembly; and 2015-2016 GMC Sierra 2500 HD, rear, 2 Piece Shaft Assembly. The steel shaft uses a regular-grade design with a 3.5-inch shaft diameter and an adjustable overall length to help match the original driveline configuration. Part number 946-346 is a practical replacement choice when the original shaft is worn, damaged, or out of balance. This part cross-references 20914839 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDriveline vibration from a worn or unbalanced shaft\u003c\/li\u003e\n\u003cli\u003eClunking or driveline noise from worn joints or yokes\u003c\/li\u003e\n\u003cli\u003eLoss of smooth power transfer to the rear axle\u003c\/li\u003e\n\u003cli\u003eService issues caused by damaged shaft tubing or joint wear\u003c\/li\u003e\n\u003cli\u003eFitment problems on rear 2-piece shaft assembly applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear 2-piece shaft assembly fitment before installation on your Silverado 2500 HD or Sierra 2500 HD. Confirm shaft length, driveline configuration, and mounting points against the original part before removal. Because this assembly is greaseable, follow the vehicle service schedule for lubrication after installation. Use proper driveline handling and balancing procedures during replacement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman supplies this drive shaft as a complete replacement assembly with new components and pre-balanced construction to support consistent driveline performance. The design focuses on restoring the original shaft function for heavy-duty Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD rear applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798253793461,"sku":"BKKY-946-346","price":1380.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946346_Fro.jpg?v=1784007874","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-346-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}