{"product_id":"dorman-946-343-drive-shaft-rear","title":"Dorman 946-343 Drive Shaft - Rear","description":"\u003ch2\u003eDorman 946-343 Drive Shaft for Express and Savana\u003c\/h2\u003e\u003cp\u003eDorman 946-343 is a complete drive shaft assembly for rear applications on select Chevrolet Express 3500 and GMC Savana 3500 vans. It arrives pre-balanced and uses all-new yokes, tubes, CV joints, and universal joints to support a direct replacement for worn or damaged driveline components.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eComplete drive shaft assembly for rear driveline service\u003c\/li\u003e\n\u003cli\u003ePre-balanced for installation readiness\u003c\/li\u003e\n\u003cli\u003eSteel shaft construction with a 3.5 in diameter\u003c\/li\u003e\n\u003cli\u003eSlip yoke included for proper driveline engagement\u003c\/li\u003e\n\u003cli\u003eGreaseable drive shaft design for serviceability\u003c\/li\u003e\n\u003cli\u003eOverall length adjustable for fitment alignment\u003c\/li\u003e\n\u003cli\u003eDrive shaft length: 121.265 in\u003c\/li\u003e\n\u003cli\u003eWall thickness: 0.083 in\u003c\/li\u003e\n\u003cli\u003ePackage contents: 1 driveshaft\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis Dorman drive shaft replacement is built for rear-position applications on 2010-2020 Chevrolet Express 3500 and 2010-2020 GMC Savana 3500 models with a 2-piece shaft assembly. It is engineered as a ready-to-install driveline solution with new yokes, tubes, CV joints, and universal joints, helping restore smooth power transfer from the transmission to the rear axle. The steel construction, greaseable design, and adjustable overall length make Dorman 946-343 a practical choice for service work on high-mileage commercial vans. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVibration felt through the floor or seat at speed\u003c\/li\u003e\n\u003cli\u003eClunking or knocking from worn driveline joints\u003c\/li\u003e\n\u003cli\u003eDriveline imbalance after shaft wear or damage\u003c\/li\u003e\n\u003cli\u003eExcess play from a failing slip yoke or joint assembly\u003c\/li\u003e\n\u003cli\u003eNoise caused by corrosion, tube damage, or joint wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear-position fitment and confirm the vehicle uses a 2-piece shaft assembly before ordering. Compare the original shaft length, diameter, and slip yoke configuration to Dorman 946-343, and inspect related driveline components for wear during replacement. Proper alignment and torque procedures are important for smooth operation after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures this drive shaft as a complete replacement assembly with new core components and pre-balanced preparation for service use. It is intended for direct replacement on the listed Chevrolet Express 3500 and GMC Savana 3500 applications.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52798253695157,"sku":"BKKY-946-343","price":1536.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_946343_Fro.jpg?v=1784007854","url":"https:\/\/www.partcatalog.com\/products\/dorman-946-343-drive-shaft-rear","provider":"PartCatalog","version":"1.0","type":"link"}