In this kind of gearbox, many of the gears of the primary shaft are in continual mesh Using the corresponding gears of the countershaft (layshaft). Because the determine reveals, two sliding dog clutches are presented on the main shaft. Automatic gearboxes appeared commercially within the 1940s, in accordance with the Intercontinental https://automobile-gearbox62727.pointblog.net/helping-the-others-realize-the-advantages-of-automobile-gearbox-78013968