These employed synchronizers to match equipment speeds, enabling for smoother shifts and easier driving. The mid-twentieth century observed the introduction of automatic transmissions.  Most transmissions in modern cars and trucks use synchromesh to synchronise the speeds of the input and output shafts. Having said that, previous to the nineteen fifties, https://automobilegearbox64173.vblogetin.com/39870189/automobile-gearbox-options