These utilized synchronizers to match gear speeds, making it possible for for smoother shifts and much easier driving. The mid-20th century observed the introduction of automatic transmissions.  Bear in mind inside a neutral placement, just the clutch shaft gear is engaged on the countershaft gear. Other gears are absolutely free, https://automobile-gearbox41627.dailyblogzz.com/34712888/a-secret-weapon-for-automobile-gearbox