Rear wheel drum--very stuck

["Galvin" <edwardg@tinet.ie>]

I am replacing the brakes on my wire wheel roadster, and am having trouble
removing a ceased brake drum, which is heavily cracked along the rim and
will have to be replaced
        One of the brake shoes appears to be rubbing   making it harder still,
after removing the four nuts I have tried much tapping along the drum,
spraying with the old wd 40, disconecting the oil line to losen the shoe,
wiggeled the handbrake cable but all to no effect with much tugging that
only moves the whole car!. Any ideas?.