Front and rear differentials may look like they are sealed and would last forever. Not so. Gear lube tends to naturally break down over time and it also absorbs moisture on its own accord in all ...

Your rear differential is one of the most unappreciated parts in your car or truck. It does what might be the hardest job of all of those components, multiplying torque from your transmission and ...

There might be a whining, grinding or growling noise coming from the rear of your car. The noise may be constant or only when accelerating or turning. And it could be so subtle that you forget it’s ...

While it’s likely seldom done, some vehicles’ maintenance schedules do include an interval for changing the differential fluid, though perhaps only under “severe service” conditions such as frequent ...