A manual transmission needs the driver to manually choose the gears[6] by working a equipment stick and clutch (which is normally a foot pedal for cars and trucks or maybe a hand lever for motorcycles). Guide gearboxes require the continuous part of the motive force through the entire movement. https://gearbox61682.blogpayz.com/33870417/how-much-you-need-to-expect-you-ll-pay-for-a-good-gearbox