So I was snow blowing yesterday with my 400 when all of a sudden the snowblower stopped. I thought that the chute may have been plugged. After inspection I realized the blower was not plugged. I restarted the tractor and heard a loud rattling banging noise under the tractor. It turns out that the motor came off the motor mounts and the driveshaft separated from the transmission. The cooling fan, that is mounted on the drive shaft was destroyed. My drive shaft is otherwise in good shape. I checked on ebay and the price of a drive shaft is rediculous. Is there any type of replacement that I can weld to my current drive shaft? Do I really need the cooling fan since all I do is use it in the winter for snow removal?