On the dually
You have to remove the axle shafts, axle nut lock ring and square lock key.
Do yourself a favour and have these parts on hand first.
Rotors
wheel / hub seals
park brake shoes
park brake shoe hardware
Rotors are bolted to the hubs from the backside
Adjust your park brake shoes through the slots on the rear of the backing plates BEFORE you reinstall the wheels.