Yup-- Glenn and I both have 6" Atlas/Craftsman lathes, and Glenn also has a 9".
Do you know about this place?
http://www.clausing-industrial.com/
They carry replacement parts for the old, out of production atlas and craftsman lathes. They can be a bit pricey, but if you can’t find a part…
Check this out also:
http://groups.yahoo.com/group/atlas_craftsman/
a forum devoted specifically to these machines. Nice helpful people.