Ron I think you got lucky! I recently pulled a set apart and a few of the bolts came out with very little effort. The others werent so lucky and I ended up beating the crap out of them with a hammer to get them free. Needless to say new bolts are in order since these are now mangled... Both sides were different as to how easy they came out and I imagine it has more to do with dirt and kickup from the road over the years making them bind in the holes. Keep that BFH handy!
Jeff