I have whipped the holy living he** out of brakes that are frozen before. And I mean hours and hours. It's about as frustrating as trying to beat out kingpins by hand with hammers. You cannot get too rough. I have found if you can chisel off the pins that hold the shoes to the backing plate, that will help you get some slack. Tractor Supply has a nice set of large pry bars for like $17. I have used about every spray known to man to try to help. It is a very serious fight. I have never broken a drum, but I have sure wore myself out on many. Swollen hands, shaking arms, etc., you're really in for a fight....
