Washboard surface means more movement of the wheel assy. Braking means more movement of the wheel assy. I would get a real close look for ANY signs of rubbing on the tire and possible areas where it can be hitting. Look on the back of the tire especially.
Have somone out side of your vehicle look at the movement of the wheel while braking from the left side then to the right side. Have one person on either side and have them switch positions. That may lead to what is happening.
Also check the placard on the door jamb for the correct size tire and check your tire size as well.
Tuesday, February 20th, 2007 AT 8:32 PM