I have a 00 GT and have done roughly 20+ brake stands in the car in the past 4 years. For 3 months now, I've had a squeeking noise in the rear end when the roads are wet or after a car wash. Took the car into Ford for a check-up, and they showed me my rear calipers and rotors. The rear calipers were ceased and both of the rotors looked bad. So now I have to buy new calipers. I would highly recommend getting Line-Loc. For the price of that compared to the price of new calipers and/or rotors, you can't go wrong.