[Jim/GA]

You will have a hard time removing the wheel and drum as a unit on the rear wheels. The tapered axle shaft into the rear hub is not easy to separate.

Try wedging something like a pry bar between the wheel and the lug nut as you turn the nut to loosen it. Sometimes that will jam the head of the lug into the back side of the hub and stop it from spinning.

If that does not work, look at splitting the lug nut or cutting the lug nut in half with a Dremel with a cut off wheel (finish the job with a chisel). Not easy to work in there.

Good luck.