Rear Drum replacement(not conversion)

The rear brakes on my dart are completely shot(locked up and lord knows how old) and I'm not wanting to convert to disc in the back, just entirely replace the drum assembly on both sides.

I've never done this before(but will have my mechanic buddy helping me out so I don't screw it up) and don't have access to the car at the moment to see what all is there, so what would I need to do an entire replacement?