These made use of synchronizers to match equipment speeds, letting for smoother shifts and a lot easier driving. The mid-twentieth century observed the introduction of automated transmissions.  Computerized gearboxes clear away the need for your clutch pedal, which disconnects the engine through the transmission in an effort to modify gear. https://simonjjkhf.tinyblogging.com/the-best-side-of-automobile-gearbox-77814425