We earn commissions from purchases you make using links in our articles. Learn more. Most of the time, it’s unnecessary to give your vehicle’s differential cover a second thought; the technology has ...

For those looking to improve cooling for their pickup truck's rear axle and provide more strength, better performance and/or ease of use with a new differential cover, there are a variety of ...

One of the quickest ways to add functionality and a touch of flair to your pickup is by replacing the boring, stock, stamped-steel differential cover with a machined-aluminum unit. While there is ...

Taking any remotely interesting mechanical contraption and replacing one of its covers with a transparent one almost always yields deeply satisfying visuals. And that's the case here with this Ford ...

Throughout the last 18 months, we've added horsepower to our '97 Ford F-350 Power Stroke in more ways than one. We added Stage 1 injectors, a complete fuel system, an aftermarket high-pressure oil ...

Proform's Perfect Launch cover is beefy. The machined face with the logo houses the bolts that stabilize the main caps. It offers extra oil capacity, two magnetic drain plugs, and a fill hole. The ...

While many car enthusiasts know how a differential works, very few actually know what it looks like inside your differential cover as you're driving down the road. Gale Banks, founder of diesel ...

Quadruple-digit-horsepower 2003-2004 Terminator Cobras are so commonplace these days that it's easy to forget the cars were designed for nearly one-third that figure. Add sticky tires, hard launches, ...

The mad scientists from Garage 54 have moved to making clear covers for more parts of a car. Watch how oil flows in a rear differential through a clear plastic cover. This serves as a reminder that ...

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 ...

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.