Most transmissions in present day vehicles use synchromesh to synchronise the speeds in the input and output shafts. On the other hand, prior to the fifties, most automobiles used non-synchronous transmissions. Torque converter does the exact same purpose the clutch does from the manual gearbox process. In this type https://gearbox53074.pointblog.net/the-best-side-of-gearbox-77378599