'40 Mercury rear end

[1939mars]

I am helping with a '40 Mercury. The rear axle was partially disassembled by a well meaning but uninformed person that is pretty strong. Strong enough that on the passenger side the axle end is mushroomed over and the drum is cockeyed to the backing plate. I tried my KR Wilson puller and the drum did not budge. We had penetrating oil on it and used a breaker with a 3' cheater. There was so much tension on it that the base of the tool was starting to spread! I am not sure what is bent and damaged in this unit so I am not sure that the tool is going to do its thing.

My question is, does anyone have any ideas aside from heat (my next step) to get this drum off? The drum is destroyed already so I am not worried about damaging it. Whatever I do, though, I do not want to damage the ring and pinion so that the whole thing can be rebuilt with those two existing parts.

Alternatively, does anyone know of a 39/40 Mercury rear axle in the Los Angeles area?

Thanks,
Scott