Full-time four-wheel final drives
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All wheel, or fulltime four wheel drive, vehicles, drive is transmitted to the front and rear wheels at the same time.
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All-wheel drive transfer case
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In a conventional full-time four-wheel drive vehicle, the transfer case allows the vehicle to be operated in high range or low range, or in a neutral condition for a power take-off.
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Transfer case differential action
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When operating in high range in a conventional full-time four-wheel drive vehicle, a third differential in the transfer case caters for the speed difference between front and rear propeller shafts.
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