Replacing Wheel Studs - Disc Brakes

[cebra]

My wheel studs were quite short on my rears which I replaced when I replaced my axles while doing the rearend. I assume my fronts are short as well, can these be removed/replaced with longer ones without removing anything further than rotor/caliper (basically can I pound them out and replace on the vehicle)? What is the knurl on a 2WD C10 with disc brakes? I will need to pull them out and replace in same day so need to order them ahead of time? Thanks.