How manual #gear box works ?
The gearboxes that used in cars are used to increase torque while reducing the speed of a prime mover output shaft . This means that the output shaft of a #gearbox rotates at a slower rate than the input shaft, and this reduction in speed produces a mechanical advantage, increasing torque.
manual gear box
The gears and shafts in red show the flow of power
The dog clutch meshes between #gear and shaft
dog clutch
gearbox