Fashionable cars and trucks use helical gears and synchromesh units during the gearboxes, that synchronize the rotation of gears which can be about to mesh. This eliminates clashing of your gears and helps make gear shifting less difficult. Engine Shaft: The motor shaft is linked to the engine through clutch. https://jeffreyknmjf.blogadvize.com/41661055/5-easy-facts-about-automobile-gearbox-described