Like most people have said, the fingers are supposed to be pre-set. I was a mechanic for the phone company for 30-years and installed hundreds of clutches and never checked a one and they always worked. But as they wear out if the clutch has been abused the fingers can develop different heights, you can feel it when you push the clutch in, you can just feel maybe one of the fingers start to make contact before the other two do, eventually the clutch will start to chatter when you start out. It really would be a good idea to verify the height of the three fingers are exactly the same once the clutch is tightened down. Maybe by placing the throw-out bearing on the fork and seeing that it touches the fingers evenly. We used to install only brand-new factory clutches because we had some problem with some of the rebuilds. I just put a new one in my daughters Scion after 150K miles, it costs a lot more for a new Toyota clutch, but I didn't want any problems with it. I had the flywheel surfaced, new throw-bearing. New pressure plate bolts. I used a torque wrench to tighten the bolts to factory specs. I always torque the pressure plate bolts. I'm lucky to have a hoist at home or that would have been a nightmare for this old-timer.
