Most transmissions in present day cars and trucks use synchromesh to synchronise the speeds in the input and output shafts. On the other hand, previous to the 1950s, most vehicles made use of non-synchronous transmissions. Interposing the idler gear among the countershaft reverse gear and the primary shaft more https://mylesgvhqx.qodsblog.com/33820247/the-basic-principles-of-gearbox