You will need to remove the drum and hub as they are held together by the wheel studs and do not separate to remove from the car. The rear ones are the hardest as you need a special puller to remove the hub from the axle taper, the nut is tightened to 200 Foot-pounds when reassembled.
This is the hub puller I and others use:
https://vintageprecision.com/product...ers/index.html