In a message dated 4/29/04 9:55:50 PM, jefe6@YAHOO.COM writes:

<< Would such a mark have a significant effect on the balance?  Any other
ideas? >>

Jeff,

It depends on how much of an animal you turn into when you have a grinder in
your hands.  Lightly scoring match marks into the flanges will effect the
balance so little it is not worth thinking about.  Just think of all the clumps of
mud or grease that end up on the driveshaft and go unnoticed.  If you still
are concerned about it, mark the flanges with a centerpunch or a chisel.  Those
tools mark the metal by displacing it, not removing it.

George