The reason I say that is because I too had a pad come off the backing plate, and I know it had at least 30-40% of its life left (based on what was left on the 3 other rear pads).

#4559 of 6535 born on Feb 17, 1998 Black 1998.5 CSVT FOR SALE [cleaning house]: SVT rear swaybar. Reasonable offer and its yours!