Every diesel truck on the road today has a differential and ring and pinion gear set in the rear axle. Four-wheel-drive trucks add a second set of gears and another differential to the front axle to ...

Selecting the best limited-slip or locking differential for your 4x4 depends on many factors, including the type of off-roading you do, how much time you spend off-road, your driving style and ...

A differential plays an essential role in pushing or pulling a car in a straight line and efficiently and comfortably moving it through a corner. Basically, it’s a device that allows two sides of an ...

With 350 hp underhood and an all-wheel-drive system to keep all those horses out of the ditch, the Ford Focus RS already offers a commute-friendly version of a Group B hatch, minus the wild body kit.

All-wheel-drive systems are proliferating through the car market like so many tribbles on Kirk’s Starship Enterprise. These systems promise all-weather assurance as well as dry-road dynamic benefits, ...