Last week I noticed slipping and revs going up when I pushed the gas pedal and then finally slowing down to catch up. I am not a mechanical genius but that neon sign in my brain saying "CLUTCH!!" was blinking on and off like crazy. I drive a nicely underpowered 4cyl Nissan Frontier which I bought because owners reported them to be mostly bulletproof. This clutch fail occurred at 73k miles which seems a little early, but I do drive in rush hour traffic on the way home from work in the morning and here in the Dallas area, you can find yourself in stop and go any time any route. Now I have to learn to drive again. I guess I was used to a lot of slip. Now I am popping the clutch and going "wheeee!"