Modern-day automobiles use helical gears and synchromesh equipment in the gearboxes, that synchronize the rotation of gears which have been about to mesh. This removes clashing on the gears and tends to make equipment shifting easier. Motor Shaft: The motor shaft is connected to the motor by means of clutch. https://beckettuspke.howeweb.com/34792026/little-known-facts-about-automobile-gearbox