These utilized synchronizers to match gear speeds, enabling for smoother shifts and much easier driving. The mid-twentieth century observed the introduction of automated transmissions.  Handbook transmissions will have a gear persist with change gears, with the help of the clutch pedal. In the meantime, automatic gearboxes handle equipment adjustments electronically, https://automobile-gearbox30628.dailyhitblog.com/39564382/not-known-facts-about-automobile-gearbox