As the How It Works series progresses, we edge closer and closer to a car's ultimate goal—which is, of course, to put power to the pavement. Lost month you learned about how a transmis-sion directs ...

Gearheads often talk of limited-slip and locking differentials, but how do the "standard" mechanical diffs compare with ...

There are many possible differentials to use in the rearend of your car. Before making your decision you should determine how you will use the car, how streetable you want it to be and how much you ...

How does a car's differential work? You probably have a vague understanding. Some stuff spins, some stuff doesn't, and somehow, the result allows your car to drive around a curve without shredding its ...

How do viscous limited slip differentials work? Viscous limited slip differentials use a viscous coupling that allows for ...

In the world of off-road performance products, the differential locker is near the top. A differential locker is mechanism that sits inside of or replaces the differential carrier. The job of a locker ...

If you’ve ever shopped for a sports car, you’ll often hear the term “limited-slip differential” (or LSD); you’re probably aware that it’s better than not having one, but it can be unclear exactly what ...

In garages, on trails, and around campfires, debate will always rage over what single modification is most effective in creating a capable 4x4. Is there one magic mod that can dramatically improve ...