It absolutely was 1st released in 1939 for automobiles. It includes the fluid coupling and three planetary gears. They collectively make a few ahead and one particular reverse speed. There is absolutely no clutch for engagement and disengagement through the engine. Most transmissions in present day autos use synchromesh https://gearbox86418.is-blog.com/40297438/indicators-on-gearbox-you-should-know