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 ...

In the March '77 issue of HOT ROD, the Hurst/Schiefer Clutch Doctor, Earl Richey, explained the ins and outs of clutch overhaul and rebuilding. But Richey is a man of many talents, and this month he ...

Installing new gears and differentials is one of those jobs that even skilled mechanics and fabricators typically don't like to tackle at home for many reasons. Setting up gears requires specialized ...

We take our differentials for granted, right? Of course, we expect our vehicles to navigate turns without scrubbing the ...