When I had stuck drums I attacked them with a drum puller and a big hammer. I used the puller to apply pressure and tapped the edges of the drum from one side than the other to slowly "walk" the drum off the pads. If you can also get a pry bar in there slowly lever the drum away from the backing plate. If the brakes are that frozen you will most likely need to replace all of the springs inside so don't be afraid to bend or break them. You might be able to grind or cut the studs for the locating springs on the back of the backing plate. Good luck!


Neil
1955 Chevy 3200