"Mike" wrote in message
...
Got some 15" aluminum car rims that need a little work to remove some
dings
and scrapes on the outer rim. Plan on smoothing and polishing rims while
mounted in the lathe. How can I do this in a 13" lathe without jacking up
the head stock?

Unless you can mount it to a vertical rotary table and use the lathe like a
mill it sounds physically impossible to me.