It's all got to do with how it's driven. I was given my great-grandfather's car and, at only 52K, the clutch was slipping. The really bad thing is that the clutch had already been replaced in the car and the replacement was shot as well.
He was hard of hearing and revved the engine up until he could hear it then he let the clutch out rrrreeeeaaaallll slow. There would sometimes be clouds of clutch smoke when he took off. Anyway, I replaced the clutch and drove it over 40K after that and never even had to adjust it. My retired Saturn had over 130K on it's clutch and was working fine, my '87 Horizon had 139K+ and was still working, and my son's '97 Saturn has just shy of 170K and still works great. So iwould say that the more you stay away from 3K hole shots and other harsh(non-FE) tactics the longer it will last. In fact, it could possibly outlast the car with proper technique.
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