Engineering Explained on MSN

How 4WD works - four wheel drive

How does four wheel drive work? This video explains the workings of four wheel drive (4WD), and gives a definition in order to differentiate different types of four wheel drive and all wheel drive.
Here's a comparative analogy for understanding the similarities and differences between all-wheel drive and four-wheel drive: Miller Lite is to tequila as all-wheel drive is to four-wheel drive. Both ...
How does four-wheel drive work? A conventional, two-wheel drive car will drive one axle, using a differential to handle the difference in wheel speed when going around bends or driving over surfaces ...
AWD and 4WD sound similar in name but they are very different AWD is always active on most vehicles while 4WD can be customized depending on the situation A lot of people use the terms four-wheel ...