Thanks for the ideas! I have dragged it with all wheels on the ground, both forward and backward (it's not running yet). I have not tried to back off the star wheels, but will give that a try. I haven't tried spraying anything in there, although it would be hard to aim it. That would be worth trying as my guess is that the shoes have 'chemically' bonded to the drum. I have a feeling they're not going to give up their grip easily. I probably will end up doing some more hammering and maybe some heat, too. Will keep you posted.