Since the introduction of the new, late-model Challengers, Chargers, Magnums, and the Chrysler 300s, we have to admit that the performance offered by these vehicles is outstanding. In fact, we've ...

Every diesel truck on the road today has a differential and ring and pinion gear set in the rear axle. Four-wheel-drive trucks add a second set of gears and another differential to the front axle to ...

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 ...