Thanks for the response, Larry,
Your methodology is the same that I used. Perhaps the calipers were just like so many other things on my car that failed without any particular explanation.
P.S. If you have changed pads only a half dozen times in 523,000 miles, you have gotten about 87,000 miles use from each set. From the time my car was new, a set of front brake pads would only last about 30,000 miles and neither my wife nor I are aggressive drivers. Have you always used your car on a long commute? Thanks again.
[This message has been edited by Ted2222 (edited 08-04-2000).]