'how reliably our spinning levers work in our automobile's transmission', exclaims the narrator in this superb late 1930's Chevrolet explanatory film of the gearbox and how their engineers worked tirelessly to produce a smooth easy to shift mechanism that makes their cars the ones to buy!

great practical explanations as to how the power is actually transferred through the shafts and gear-wheels for those of us who aren't too sure as to what goes where - and why... plus, how the synchromesh gears work to produce seamless and efficient shifts of gear. This was really cutting edge material for the day and includes shots of now classic automobiles and city streets.