I just had to replace the front hub on my 65. The studs are press fit. You can knock them out as suggested, or press them out. They are press fit in the hub as well, so they may or may not come out. (I don't think 64 1/2 are different) They can be put in with a hammer and taken out the same way. OR you can take it to your local garage and have them Press it for you for a nominal fee. OR by a cheap press at Harbor freight. If you go the hammer route, put a lug nut on the end of the stud when driving out to preserve the threads.
Good luck