Seezed brakes, can't get drums off...HELP!

[Patsfan34]

So after letting the cylinders in my 292 soak in mystery oil for many weeks me and my dad decided to put this rolling chassis in gear and give it a little tug to see if we could get her free. We tied a massive old tug boat rope to the front axel and my dads Silverado and he slowly began to toe the chassis. Well wouldn't you know the drivers front wheel and the passenger rear wheel are both dragging. So, I jacked it up take off wheel and tap the drum with mini sledge. After 10 minutes of tapping the thing is only hung up on top, I can see the whole drum wiggling but will not budge at the top. Same thing happens on the other wheel. Now without totalling destroying these drums how am I going to get them off?