No need to began another post re the same issue. In your previous thread, I believe I mentioned trying to get the T case back into AWD , by cycling the dash switch through it's options, and then disconnecting the connector. As TomK says, that T case does not have a 2WD mode. As the switch is marked, you have AWD/4HI/4LO, and Neutral. Good luck. Hope this works for you.