We began by putting the brake rotors and hubs together with the wheel studs. A chewed-up pinion gear made a perfect driver to pound in the wheel studs and sandwich the brake rotors to the hubs. Make sure you fully seat all the studs. When you whack each one with a hammer, the resonance will be different when the stud is fully seated. A quick visual inspection will allow you to check for congruence by comparing how much each stud sticks out of the wheel hub.