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 ...

Begin final setup assembly by oiling the rear pinion support bearing, side bearings and races, bearing cap holes, spanners, and all case threads. For initial setup, use a .019-inch-thick pinion shim, ...

Which rearend is better? GM’s time-proven 12-bolt or Ford’s popular 9-inch. Each has its advantages and disadvantages. The Ford 9-inch is heavier and eats up more power due to a disadvantage in pinion ...