In a message dated 08/10/10 10:56:46 Pacific Daylight Time, deltainc at grm.net writes: Strangely, a couple of Toyotas of mine have had warped front rotors after having new tires put on; it would seem that the lug nuts were tightened either excessively, or not with rotational gentilitiy. Perhaps a case of Unintended Torquenation! - Seth