You should smack the drum between or just in from the studs. You want the drum to be supported by the hub. A little movement means big progress. Those drums are almost impossible to find replacements for.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!