Whether the front or rear drive, when the car slips only one tire drive, while the other in the coaxial tires do not seem to drive? There is also a diesel forklift (forerunner) that is always a tire slip when pushing the goods to slip. The ground with a tire to leave a black mark. The other does not seem to move. Does that drive a wheel when the car is running in a normal way?
Some cars are equipped with a differential lock to solve a single wheel slip!
Two turn it .. two drive or four drive
This is the car's differential at work. If the normal driving, the two wheels are rotating at the same time.
In the case of the left and right sides of the car driving wheel is not subject to resistance to the case, the left and right drive wheel is driven at constant speed, generally only in a straight line before the speed, the role of differential: the input torque is divided into two, Two drive axles, and allow two axles to rotate at different rates.
