on my 58, when I took off the rears, one came right off, the other would not so, I took the axle out and took the hub and drum off as a unit. Once off, I set it on the floor of the shop, picked up one side an inch or so and dropped it on the floor a couple of times. That knocked the hub loose from the drum so I could separate them. (years of rust and dirt tend to make them stick!)