How to remove rear brake drums?

First, make sure the parking brake is off, also, there is a mounting screw that needs to be removed before the drum will com off, if you have done this rust can hold the drum into the bearing hub flange.

Please go over this video to help remove the drum:
https://www.youtube.com/watch?v=UV0kfP17Co0

If this doesn't work then the brake shoes are holding the drum on so the self adjuster will need to be released. These images will show you how. Check out the images (below). Please upload pictures or videos.