@whitefaceford: Your 4WD Automatic Is Not the Same as Locking Into 4 High That 4A on your gear selector is doing something completely different. Four wheel drive automatic uses a clutch in the transfer case that lets the front and rear driveshafts spin at different speeds so you never get binding on corners. Which 4WD mode do you use most on your Ford? #FordTrucks #WhitefaceFord #DealershipSecrets