ok, 87' 22RE I had it in 4 high and as is normal for my truck, I have to be rolling and push a little to get back into 2WD. This time it all of a sudden clunked and the shifter went everywhere, really loose. I couldn't get it in 2WD or 4WD. After fiddling with it for a few minutes I managed to get in to 4 high. Got home and thought I would try shifting into 2WD as I rolled up to the shop and it worked. My neighbor is a mechanic and said it sounds like something with the transfer case. Can anyone help me out?