ya second gens loos 4Wd, ABS, VDC when one sensor goes out. found out the hard way but there is a bypas prosedure you can do to put the truck back into 4hi, once that is done you can jump between hi and lo as usual, just don't drop it back into 2wd or you will need to do the procedure again. I can post the procedure once I get home from work. I just can't remember what exact fuse you need to pull,
Edit: found the info in a post i made in the other forum
shut engin off,
pull the ABS/ECU fuse, and shift the 4wd selector button into 4Hi
Start engin
then put the fuse back in the Tcase will switch