It absolutely was very first released in 1939 for automobiles. It is made of the fluid coupling and three planetary gears. They collectively make three ahead and a single reverse speed. There is no clutch for engagement and disengagement through the motor. Most transmissions in modern-day automobiles use synchromesh https://gearbox83793.elbloglibre.com/33767660/the-definitive-guide-to-gearbox