Motor Shaft: The motor shaft is connected to the engine via clutch. The equipment on motor shaft transfers the power towards the gear on lay shaft. When the pc decides that the time is correct, it disengages the clutch automatically, selects a different gear and after that re-engages the clutch. https://rafaelabdhj.ltfblog.com/32760408/the-2-minute-rule-for-gearbox-auto