I haven't heard of any problems. I think they last a good long while on a properly cared for engine. Should go well over 150k miles in most cases.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15