Granted, mine was a 1/2 ton and not a 1 ton, and so perhaps different.
My rear drums wouldn't come off either. I heated the center portion with a torch, and then splashed it with cold water, and hit with a BFH. Big %^$# Hammer. I also had to pry from behind with a pry bar...eventually it broke the rusted area between the drum and the plate behind it.
Good luck.
