PART-TIME 4-WHEEL DRIVE
refers to a vehicle with selectable 4x4 or 4x2, requiring the driver to manually shift between 2WD and 4WD using either a lever or a switch. With part-time 4WD, you can "shift on the fly" (switch between 2WD and 4WD while driving). Part-time 4WD gives you better traction on slippery surfaces because the front and rear sets of wheels are locked together. Thus, this is the optimum choice for most off-road conditions.