Full-Time Four-Wheel drive
This drive system offers both a two-wheel drive and four-wheel drive mode. Four-wheel drive can be engaged on dry pavement for normal on-road driving because this system uses some type of center differential. A typical full-time four-wheel drive system offers two-wheel drive, four-wheel drive auto and four-wheel drive Low. Virtually all full-time four-wheel drive systems also have a two-speed transfer gearbox.