Hi guys,
I wrote the Wiki article where John Kunkel got the pic of the hub above. The article was showing how to convert the rear brakes to slip on drums on pre-65 8 3/4" rears with tapered axles. Although I wrote this article about pre-65 tapered axle rear ends, this procedure for removing the studs should work on any swedged stud hub.
First, you need to cut the stud off flush with the outside of the drum. You can use a cut-off wheel for this or a hack saw; just make sure you have them flush with the drum surface. Then, center punch each one and drill a 3/16" - 1/4" hole in the center of each stud about a quarter inch deep. This will relieve the stress and allow the swedged area to curl in on itself when the stud is pressed out of the hub. You need to do this for all five studs. Then from this point, it is a simple procedure to press out the studs. With this done you now have the hubs and drums separated. Remember this procedure will basically ruin your drums so don't use it unless you plan to replace them.
I'm not sure post 64 Mopars used the same size stud, but if so the rest of this will apply. You now need to press in new studs. The stock lug bolts on these old Mopars are 1/2-20 UNF thread with a 0.622" knurl. The knurl is the ridged part of the stud that fits into the hub. In order to have a good tight press fit you need to make sure whatever stud you use has a knurl size of at least 0.622", but it can't be too large either. If it's too large, it will be difficult to press in and you stand a chance of damaging the hub. NAPA has studs that have a 0.623" knurl (part number BK 641-1128) and these work very well. Below is a picture of a set of my '64 Polara rear hubs with these non-swedged studs installed.