Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Changing the car differential oil—it's one of the most-overlooked maintenance tasks ...

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A differential is one of a car's most important moving parts. It's the thing that takes the torque from the car's driveshaft, and distributes it among the driven wheels. Since there's a lot of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Changing the car differential oil—it's one of the most-overlooked maintenance tasks on non-FWD light ...

Larry Kosilla is here to show you how to replace your rear differential fluid on this Wrenched. Think your rear differential is due for some re-lubrication? Larry Kosilla is here to show you how to ...

When a car turns a corner, one wheel is on the "inside" of a turning arc, and the other wheel is on the "outside." Consequently, the outside wheel has to turn faster than the inside one in order to ...

A key part of getting a car's power to the ground effectively is the differential, which uses gearing to regulate the split of power between wheels on an axle. This video shows exactly how it works.

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 ...

The limited slip differential (LSD) is one of the greatest automotive achievements since the invention of the automobile itself. Yes, it helps transfer power to the ground under hard launches or ...

A limited-slip differential (LSD) is a crucial component for maximizing traction during cornering and acceleration. For the unfamiliar, a limited-slip differential is positioned between the axle ...

In high school, I drove a 1946 CJ2 Willys Jeep. In 1992, I upgraded to a 1948 model and used it for construction hauling. I’d put the windshield down and use it to carry all sorts of materials, ...