[redmodelt]

As most drums are not worth saving at this point so a carbide tipped hole saw that just fits over the stud to cut the swedged part away, knock the studs out (don't go too deep), drop a few times on the cement and the hub will pop out. (drum side down)

If you are having new drums put on, ether send the hubs out or read Charlie's post. If you are having a shop/you do the reinstall, make sure they/you check run out on the flange. Most of the time it will need a few 1000's clean up. Also, Google :Fordbarn; cast iron drum install", that should pull up lots of good info that has been posted here. Don't forget new drums need to be cleaned up to center and turned to correct inside diameter. (parking brakes too)