[fordtrucksonly]

If its a little tight, it may be because rear drums have never been replaced. If they havent there will be a little plastic fitting around the stud up against the drum cover. Take a screw driver and pry that off. If they have been replaced then i would try to wiggle and try to loosen witha flathead. also if you have an air compressor blow off around the edges, there may be dust and dirt around there preventing you to remove it.