When heading all-around a curve, this either forces one of several wheels to slide, if at all possible, to balance the obvious length included, or produces awkward and mechanically annoying wheel hop. To stop this, the wheels are allowed to convert at different speeds using a mechanical or hydraulic differential. https://4-499999.azzablog.com/36529958/the-fact-about-4x4-that-no-one-is-suggesting