Have you tried backing the brake shoes off? Pop the little covers off. Back off the adjustment wheels..if you can....a few whacks with a BFH to get the rust moving around...soak with stuff like PB blaster...leave it soak for a couple of hours, work on the other end of the truck...repeat....Unless they are one solid ball of rust, they should come off....I would not cut the drums quite yet...both my trucks had the same problem...the drums came off all 4 corners...both trucks....
