70 Duster Rear Drum Help

That is the 70 to 72 bell drum that is the factory style for our A-bodies.

There is no factory drum that has the two patterns like that so it must have been drilled when the axles were modified.

I think I can cut them, they are a little thin though. Disc conversion in the near future or maybe Control Freak front and rear with Wilwood. Or maybe sell it!?!