It was 1st introduced in 1939 for automobiles. It includes the fluid coupling and 3 planetary gears. They collectively make a few forward and one particular reverse pace. There is not any clutch for engagement and disengagement with the motor. The copyright which unites the many planetary gears revives https://troycbzxt.therainblog.com/32720453/top-latest-five-gearbox-urban-news