not your alignment guy guy if you press the breaks and your car shakes.. thats the rotors, brakes, and if it's really bad calipers. You have warped rotors. fix them. asap. and party!

really? cuz like, it doesn't happen if i'm pressing on the brakes lightly and going like 30mph, but if i step on them like to stop going fast on the highway like 60mph, it rumbles and when i get to...