Worked on it yesterday. Due to the tilt the truck sat at for many years, a LOT of moisture got into and around the drum. Major corrosion. I was successful at freeing up the star wheels and backed them fully off. Then I used oxy-acety heat, lots of penetrating oil and heavy hammering on the drum and backing plate. No movement yet, but I'll let things sit for a while and keep applying penetrant. I have thought about cutting off the heads of the guide bolts and maybe try to remove the wheel cylinder bolts. This might give the shoes a little more room to move? I just don't want to have parts rattling around inside that might jam against the drum when trying to roll it into the barn.....and I'd rather not remove the drum where it sits.