WOW, I know what your up against,which I would guess is due to the drum rusting to the hub flange.
Mine came apart nicely,maybe due to the gasket like material the factory put between the drum and the hub flange.
Have you thought of removing the hub and drum as an assy.and then drive the hub out of the drum. Thats if a 1 1/2 is the same as a 2 ton which I'm not sure about. Other than that I would just keep soaking it and maybe in a month or two it will loosen up.
Sorry, I couldn't resist saying that cause I soaked a part on a tractor for that long and it didn't loosen up.
Dan
