Here's the deal. I'm putting the rotors on the hubs, pressing the wheel studs into the combination. My problem is with the wheel studs pressed all the way down, the rotor wiggles, not much of a wiggle, but enough it is recognizable. The is no slack up and down, just grabbing the rotor with 2 hands and twisting back and forth. Any help??? Do I need to worry? I guess if I don't need to worry I wouldn't be asking. The rotors and wheel studs are new. The rotors are '76 3/4 ton.