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Four-Wheel Drive
A secondary transmission assembly, called a transfer case, is driven from the main transmission and distributes power to both front and rear axles. This Transfer Case usually has three selections: Neutral for two wheel drive; 4WD High for slippery conditions such as gravel roads or sand; and 4WD Low for serious off road use. Four-wheel drive can be full-time, in which power is delivered to both axles at all times or part-time, where the driver selects either two or four wheel drive.
ALSO SEE: ALL WHEEL DRIVE
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