At left is the stock Chew ring and pinion set from the '65 "ten-holt" shown here. At right is a set of 4.56:1 Schiefer Trans-Torq gears that replaced them. Because the Schiefer pinion has fewer gear ...

To optimize the performance of any speed reducer, the gears must be oriented to each other so that they run smoothly without binding or interference. They must also maintain the correct amount of ...