Ok so I tried to push the vehicle while in park and it doesn't move however when I try switch the the **** for 4wd from 2hi to 4hi the 4hi light just blinks I checked tcm fuse #8 under hood and that is good I then check the to see if I can hear the transmission motor in the front and back I can hear it in the front switching but not the rear one I had someone look at it and he is telling me it's the transfer case but what I'm confused about is could it be the transmission motor or the transfer case I dont want to buy a transfer case and its just the transfer motor