Hey guys.. the last couple of days ive noticed some odd brake metal on metal noise, it only occurs at low speed, like just off idle, an only when im NOT on the brakes, there is no noise when i apply the brakes and the truck stops with no issues. do you think this is a warped rotor, stuck caliper etc?? l havent pulled the wheel yet, but visually thru the spokes it looks like there is still pad life left. i had it in for the timing belt 3k ago and the dealer didnt mention anything about it needing brakes, rotors or anyhting else.. any thoughts or anybody else experience this? thanks