>I find my rear drums
>pretty solidly frozen to the hubs... is there a special puller or
>extractor for it, or is it just simpler to deal with the 46 mm nut?

I didn't have this problem, but found that I had to remove the 46mm nut and take the hub off to be able to get at all the springs and stuff in there.  Its probably possible to do a rear brake job just by removing the drum, but it didn't look easy!

Bill