Early Bronco

So, I doo realize it as advertised as a 4×4 but in reality it is all wheel drive. So what Mode dooes it need to be in what Ford classifies as a 4×4. Please explain wht drive mode to be in?

So, I doo realize it as advertised as a 4×4 but in reality it is all wheel drive. So what Mode dooes it need to be in what Ford classifies as a 4×4. Please explain wht drive mode to be in?