When the pc decides which the time is right, it disengages the clutch automatically, selects a completely new gear and then re-engages the clutch. In manual transmission, the driving force must shift the gears manually by using the equipment shifter. The below figure reveals The fundamental construction in the guide https://gearboxauto41739.blazingblog.com/34161250/little-known-facts-about-gearbox-auto