If you are removing the hub from the from the drum just lay it on the ground, with the dust cover off, put a 2x4 over the hub and smack it with a small 3# hammer. The hub should seperate from the drum. But you need to press the studs out. Also you need to get the hub and studs pressed back in, so unless you sre just seperting to save shipping weight. I would let a machine shop do it for ya.