get a can of compressed air like you use on a computer keyboard, turn it upside down and spray that shaft down and then wap it with a hammer and it will come out. that shaft will get so cold you wont be able to touch it for 30 minutes afterwords without freezing your hand. I did it on a clothes dryer once to get a bearing out. You can take the new piece and put it in the freezer for a couple hours and make it go in a lot easier also.