Thanks for the info. I do not have my truck or manual here right now but will do some checking as soon as I pick it back up tomorrow. Let me make sure I understand. First, I could have sworn that my manual says to the right for auto. You are saying to the left on both (like on the Expedition I saw). Second, even though the hubs are locked, if the in cab is not turned to 4 wheel drive, then you are not in 4 wheel drive, right. If that is the case, then I know my in cab controls were not turned to 4 wheel drive, so my 4 wheel drive could not have been engaged and the theories given to me fall apart. I will try to do your recommended checks as soon as I can. Thanks for the help.