4WD definitions

4WD

four-wheel-drive.
Found on http://bikecult.com/bikecultbook/glossary_english.html

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4WD

A drivetrain that employs two differentials and a transfer case to provide power to all four wheels of a vehicle.
Found on http://www.edmunds.com/glossary/

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4WD

four-wheel drive.
Found on https://www.infoplease.com/dictionary/4wd

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