Years ago on my Dad's '46 pickup one of the fan blades got broken off somehow. In order to keep the fan in balance they broke the opposite blade off as well. It ran that way for a long time.
Not saying that's what happened to yours, but it is a possibility.


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!