We describe how all-wheel drive (AWD) and four-wheel drive (4WD, a.k.a. 4x4) work: similarities, differences, and ways they can be confused.
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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.
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