You say you have problems with warping rotors? I have a solution for you. Take your car to Ford and have them turn the rotors on the car. They have a special tool for this, and it will cost you about $99 US per axle. The tool compensates for any type of misalignment between the pad/caliper/bracket/spindle. I had a serious warping problem on my 95 Windstar. The front brakes warped at 4000 miles after replacing the pads/rotors with new ones. I took it in and had the on-car turning done, and now they have been fine for the last 12,000 miles. It's expensive, but well worth the cost.