Output shaft: The gears to the output shaft meshes While using the gears on lay shaft to acquire different gear ratios. Primary shaft: Additionally it is called an output shaft. It offers obligatory torque to the car or truck. It has ridges and enamel Hence the gears can transfer efficiently. https://automobile-gearbox86395.techionblog.com/34174757/5-tips-about-automobile-gearbox-you-can-use-today