Wheel hub sources?

To separate the hub from the drum, you must cut the wheel studs as close to the drum as possible, center punch each one and drill a 3/8 hole into each one , but not all the way through each one. This will allow them to be driven out with a punch. Failure to do it in this manner will ruin the hub because the swedged part of the stud will enlarge the wheel stud holes. I have also had good success placing a metal cutting 5/8 hole saw over the studs and drilling the swedged pare of each stud off and knocking them out that way. Either way will work, but failure to do either and you'll be looking for another hub. No one makes new ones.