This is the best way to cut the heads off the pins......... but also remove the
two bolts that hold the wheel cylinder in place, as it helps to remove as many
pieces of brake hardware, to give you that little extra clearance to remove the drum. Like a previous poster said, you can try and loosen the star adjuster
at the backing plate, as long as its not frozen solid. I've actually taken a torch flame and heated the adjuster threads thorough the adjuster window enough to free it up. Just keep working it, it'll come loose. For the most stubborn Michigan drums, I just pull out the plasma cutter, and done. Good luck.