what is the procedure for shifting into 4wd

Hi gkratt! I didn't come with your guide on the web. I'll keep looking but in the meantime a short trip to your local library will probably yield results. Most keep Chilton's manuals on the shelves and of those that do chances are they are going to have the manual for F150s. Try there. You may get your answer for the price of a couple 25-cent copies. Failing that try the service guy at your local Ford dealer. Just drive up with a coffee and he'll probably give you a demo right there and then. Good luck!