I believe this is common knowledge by now, but let me rant a bit, if you will.
My rotors are beyond repair at 45K miles. They have rotted, spalled, and pieces have broken off the outside edge (from rust). I thought the guy was full of BS when he told me he could not turn them, but it was true. They would not have met minimum thickness for sure, and the heat cycling had formed cementite (look for it, its like gold colored zones, often near the hub). Cementite is a form of carbide, which does not machine very well.
I would expect a horror show if i was hard on the brakes. But I mostly do highway. So, either the rotors are too small, or the Ford rotors are the cheapest thing on the face of the earth. At almost 100$ us a pop, I would expect better. Anyway, all the corrosion I have seen inside the vented part warrants plating my next rotors.
rant out.
------------------ Marco Tatta 98.5 SE MTX, Duratec EGR block, fog light fix
Marco Tatta 98.5 SE MTX, Duratec EGR block, fog light fix, custom shift boot, monsterflow intake, Ecotek valve Quasi dual cardoctor exhaust. Hacksaw short shift, Momo race "s" carbon knob, ghetto rear strut bar, 16 inch cougar wheels with 225/50/16 kumho 712s
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