Yeah.... I was SURE that they were bad so I installed new ones and it still shakes. Maybe the fronts have warped? They were replaced a few months back. My drive home from work often has traffic slowdowns from 70+ down to 20 mph or less. 5000 lb truck plus me and 500 lbs of tools....This problem started after a few weeks of commuting. maybe I'll have the rotors checked out. Thanks!