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As the linkage assembly begins pulling on the clutch fork, it pivots on an adjustable ball stud, which in turn releases the,throwout bearing on the pressure plate. Exactly how the ball stud is adjusted determines where in the pedal's range of travel the clutch engages. Many drag racers prefer a clutch pedal that engages right off the floor for quick launches and reaction times. Road racers, on the other hand, often prefer the pedal to engage as high up the travel range as possible for brisk shifts and reduced clutch rattle. Since Project Olds certainly isn't a drag car, Jarvis opted for the latter option by lengthening the adjuster stud until the clutch fork began contacting the throwout bearing, then backed it off a few turns. After the clutch's break-in period, the linkage should be adjusted again to take up any slack.