I've done several and press them out with my vise as well. Made this crude piece from a 3" piece of black pipe. The cut-out fits around the flat end of the stud and clears the step on the hub. A couple turns of the vise and the stud pops right out. Also have had very good luck pulling the new ones in with an impact wrench, washers, lube, and a sacrificial nut as already mentioned. A shop press is another good option. If you don't have one, it's typically quite inexpensive to have them pressed out and the new ones pressed in by a machine shop. I don't care what the instructions say. Leave the hammer in the toolbox. I personally don't like to see these kinds of parts treated that way.