In such a gearbox, each of the gears of the main shaft are in regular mesh Along with the corresponding gears with the countershaft (layshaft). As being the determine reveals, two sliding Canine clutches are presented on the key shaft. 3 other gears like initially speed, second speed, and reverse speed gear https://spencerbjnnm.angelinsblog.com/33290610/automobile-gearbox-an-overview