Fashionable cars use helical gears and synchromesh devices within the gearboxes, that synchronize the rotation of gears which can be about to mesh. This eradicates clashing with the gears and would make gear shifting simpler. An automated transmission isn't going to have to have any enter from the motive https://gearbox42974.blogdun.com/34446463/the-basic-principles-of-gearbox