In 1 year gone thru 3 sets of front rotors. Checked calipers and no drag. can squeeze piston back with minimal force. Slide pins are sliding. Tie rods and everything is tight. No movement horizontally or vertically with tire on. New rotors are fine for a month or so then start shuddering while braking at highway speed and down. New is a vibration while accelerating up to highway speeds around 100-125 kmh
. I've never before had any problems like this. Anyone else with similar issues or advice?