The all-new GMC Hummer EV takes the latest technology and applies it to a battery-driven off-roader, conquering the trail with electrons alone. In order to put those electrons to use in the most ...

There are lockers and knockers, limited slips and Sure Grips. Sometimes they're called Positractions and sometimes much worse. But this name game is really about the concept of pushing equal measures ...

Off-roading enthusiasts know that having a locking differential on your car when going off the beaten track can make life a lot easier when the trail gets sketchy. Some cars come equipped from the ...

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 ...

We take our differentials for granted, right? Of course, we expect our vehicles to navigate turns without scrubbing the inside tires or hopping the outside ones. But how does a diff do that? Look for ...

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In the automotive world, especially when it comes to off-road trucks and SUVs, differentials come up all the time. Is your differential locking, limited slip or open? Do you have a transfer case? One ...

The rearend is one of those glamourless parts of a street machine that usually only gets attention when it breaks. "If it ain't broke, don't fix it" is a common but dangerous and potentially very ...