Most transmissions in modern-day cars and trucks use synchromesh to synchronise the speeds with the enter and output shafts. Having said that, prior to the fifties, most cars used non-synchronous transmissions. An computerized transmission would not require any input from the driver to change forward gears below regular driving https://spencerhugst.blog2news.com/34418142/the-2-minute-rule-for-gearbox