No tricks. use pb blaster around the hub. If they stick, just get a really big hammer and have at it.
Also, the drums are most likely fine. The shoes, also, are most likely fine. However you need to adjust them. Yes there are "automatice" adjustments however they dont work well if at all, so manual adjustment is needed. Adjust them one click at a time; put the drum back on, wheel back on and spin it. You want them to rub and come to a stop in about 3 seconds. Keep repeating this untill you get to that point
