Retro hour: 1936 video brilliantly explains how transmissions work

In yet another retro edition of ForceGT, we present “Spinning Levers” – a training video from the 1930’s which brilliantly explains transmission fundamentals.

The educational video was produced by Jam Handy on behalf of Chevrolet. It begins with a simplistic understanding of how a lever works and progressively increases the complexity of their models. Initially the basics are covered; eventually Jam explores the concept behind multi-speed and synchro-mesh gearing.

If you enjoy this video then check out Jam’s guide to the differential, he uses the very same technique of increasing complexity to explain it.