At 09:24 AM 4/18/2002 -0700, you wrote: >There is a minimum thickness for safe operation, turning them below that >specific thickness risks brake failure due to fade and perhaps warping. The >minimum safe thickness will be in the FSM, and is usually cast into the >rotor/drum somewhere to warn the brake shop. No professional brake shop >will turn a drum or rotor below that minimum, lest he open himself up to a >monstrous liability/lawsuit, and, at least in CA, lose his garage keeper's >license. Dick, I was looking at the 68 repair manual trying to find the minimum thickness. I may be wrong, but I think they did not list a minimum thickness. Instead, they just said that rotors should never be turned and machined! They assumed that nobody will machine them, so they did not publish a minimum thickness, or so it seems. D^2