All-wheel drive and four-wheel drive may sound similar in name but have some key differences in how they work.

Four-wheel-drive used to be synonymous with mullets off-roading in the minds of most consumers. Like many buzz-worthy specs originally developed for enthusiasts and professionals, though, some variant ...

A 4WD system was once reserved for other types of vehicles. However, the five legends in this article broke new ground and proved the advantages of the system in passenger cars. During the 1960s, ...

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 ...

When a car turns a corner, one wheel is on the "inside" of a turning arc, and the other wheel is on the "outside." Consequently, the outside wheel has to turn faster than the inside one in order to ...

As far as car fluids go, differential oil is one of the most neglected pieces of maintenance. It could be because the effects of not changing differential fluid on time aren't as immediately obvious ...

It's the summer of 1974, and you're ready to kick up some dust on California's Rubicon Trail in your Jeep CJ-5. Hope you're ready for a workout. To engage the old Jeep's four-wheel drive, first you ...

A differential is one of a car's most important moving parts. It's the thing that takes the torque from the car's driveshaft, and distributes it among the driven wheels. Since there's a lot of ...

It’s not surprising that 4-wheel-drive cars are popular, especially in the USA where off-road adventuring is popular, and weather can vary drastically depending on where you live. Rain, mud, and snow ...