So yeah my the gfs car makes a thud when braking. It's more from a higher speed and less thuds when braking from a slower speed.. It's not a loud thud by any means but it's there. And I think I can hear it when I'm just driving to. The only things I can think it could be is the brakes or the wheel bearing ( which I'm going to jack up the car in an hour and check that ). Any suggestions on what else could be