What Size Press?

As the others said you don't need a press to remove wheel studs. I've knocked them out with a claw hammer but a 2 or 3 lb. sledge makes it easier. Just put a socket larger than the studs head underneath the flange so your concentrating the force in the area right around the stud, not all over the axle flange. Hopefully that makes sense. If not I can post a pic. If you want a press and this is an excuse to get one (works evey time for me with the Mrs., LOL) don't get anything smaller than a 12 ton cause I guarantee you'll find other uses for it that'll require more power. If you can afford it go for the 20 ton. That's what I have and love it. Not much it won't press apart.