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 ...

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 ...

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 ...

If you own a 2022 or newer Nissan Frontier and you've spotted fluid or "weeping" around the rear differential, you might be dealing with a leak. A lot of these trucks seem to have weak diff covers and ...

BD Diesel Performance’s Cast to Cool Differential Covers are engineered to keep oil on the gears unlike other designs that allow oil to be flung on the inner surfaces, falling back down into the sump.

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, ...

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.

This basic exploded view of a typical four-pinion Ford factory Traction-Lok shows How all the parts fit together. Ford has used "'open" diffs, Detroit Lockers, and several types of clutch-type limited ...