In such a gearbox, the many gears of the main shaft are in continual mesh While using the corresponding gears on the countershaft (layshaft). Given that the figure reveals, two sliding Canine clutches are furnished on the main shaft. You could check out a visual demonstration of handbook gear transmission On https://automobile-gearbox18494.snack-blog.com/34114288/the-ultimate-guide-to-automobile-gearbox