I hate to say it, but you need to check the linkage at the transfer case. Have a helper move the shifter so you can see if it is moving there. If it is, see if you can figure out how the linkage comes off and see if you can move the shifter on the transfer case. Please make sure the vehicle is secure with the parking brake on and the wheels blocked so it can't move. The transfer case can be shifted into neutral, and regardless if the transmission is in park, it will move.
Also, check to make sure the fluid in the transfer case is clean and full.
Wednesday, March 24th, 2021 AT 12:08 PM