I have a9500 17' auger has been working perfect till yesterday,the unload auger quit. The horiz. auger we pulled out had the last 1' of flyting laid flat and peeled loose from the shaft. After straitening the flytes and welding back on shaft put it back in it vibrates very badly. I will probably replace both augers as they have alot of wear ; any ideas on how to do this and have auger balanced properly? it has flat washers attached to the flytes in a couple of places,does it come already balanced from Deere?"