The 2016 GMC Sierra HD lineup is equipped with the Eaton Locker automatic locking rear differential, and it comes in handy during times where getting traction can be difficult. It's what GMC refers to ...

Traction is always an important issue for pickup truck buyers and owners, especially when towing, carrying payload or just exploring the roads on the way to your favorite campground. A spinning wheel ...

Locking differentials are a type of differential used in vehicles to improve traction and handling, especially in off-road or challenging terrain conditions. The purpose of a locking differential is ...

QUESTION: I own a ’91 Chevy full-size pickup with four-wheel drive and need to know whether “posi-traction” is different from limited slip differential. I also need to know what I have on my truck. I ...

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 ...

In the world of off-road performance products, the differential locker is near the top. A differential locker is mechanism that sits inside of or replaces the differential carrier. The job of a locker ...

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 ...

Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Growing up, Mark always had a mind for tinkering on random items throughout his home and dad’s garage, including a 1953 Ford Mainline 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 ...

TheGM 14-bolthas to be one of the easiest axles there is for a guy to set up in his driveway, and a beginner's best friend since everything about it is straightforward and it all comes apart easily.