Most transmissions in modern-day autos use synchromesh to synchronise the speeds on the input and output shafts. Having said that, prior to the 1950s, most vehicles utilised non-synchronous transmissions. It was initial released in 1939 for automobiles. It is made up of the fluid coupling and a few planetary https://gearbox49246.bloggactif.com/35058004/the-gearbox-diaries