Let's be honest, the average person has never thought about whether differentials even have fluid. They're not like engines, which require oil changes after about 5,000 to 10,000 miles (or 12,500 if ...

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 ...

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 ...