It was first released in 1939 for vehicles. It is made up of the fluid coupling and three planetary gears. They collectively make a few forward and a single reverse speed. There is no clutch for engagement and disengagement within the engine. Torque converter does the identical functionality that https://gearbox97528.is-blog.com/40291847/how-much-you-need-to-expect-you-ll-pay-for-a-good-gearbox