Backlash, pinion depth, tooth pattern, pinion and carrier-bearing preload—what does it all mean? When used in reference to an automobile, these terms usually apply to the rearend (or differential) and ...

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 ...