Four-wheel-drive (4WD) and all-wheel-drive (AWD) drivelines provide the highest levels of traction for driving in changeable weather conditions or off-road. 4WD vehicles allow manual engagement of ...

All-Wheel Drive, or Full-Time 4WD Obviously, in some situations, it’s desired to drive all four wheels of the vehicle even on high-traction, sealed surfaces. Thus, a solution to get around the ...