These made use of synchronizers to match gear speeds, enabling for smoother shifts and less difficult driving. The mid-20th century noticed the introduction of automatic transmissions.  Handbook transmissions could have a equipment follow change gears, with the assistance of the clutch pedal. In the meantime, automatic gearboxes manage gear adjustments https://keeganouwwv.boyblogguide.com/33156201/detailed-notes-on-automobile-gearbox