[bobcowan]

Most factory cars have a significant weight bias towards the front. That and basic physics require more braking power to the front. That's why front rotors are generally bigger than rear.

The FFR Roadster has an almost perfect weight balance. With a 302 it's about 50:50. So I'v heard of people using the same sized rotors on the front as the rear. I have never heard of anyone using smaller rotors on the front; on an FFR it doesn't make sense.

On a mild street car the stock Mustang brakes are more than adequate. They will quickly over whelm available traction if you're not carefull; especially with PB.

When you say big bux for a brake upgrade, does that mean Wilwoods? If the studs are not even, that means the lugs are loose. They will back out enough to hit a suspension component, and literally bring the car to a screeching halt.

I'v had this problem with my car. As you try to tighten the lugs, the studs get loose. I use red lock tight, and used a centerpunch to stake them into the alum hub. That's seems to have fixed it