OK, 1988 350,700R-4,NP-208. Last night I'm taking off across a intersection, driving normal, and with in 5 feet POP! Nothing but a grinding noise. No power to the wheels. After a few mins. investigating I figure out it must be my transfer case, tried locking my hubs(nothing), tried shifting between 2H-4H-4L, only got the same grinding noise. So I dropped the transfer case today and much to my suprise it looked perfect. But playing with it on the bench I couldn't get it to disengae from 4H. It felt fine shifting but it always stayed engaged. So I figure tommorow I'll reassemble and hope for the best. ALSO is that a one time use crush nut&washer that holds the front driveline hub onto the shaft? The Haynes manual says to "discard" the nut, washer, and seal. That is all the say. Thanks guys, by the way did I say that I'm selling it Tuesday!!! I really need to figure this one right now. Displacement, cubes, and did you say you drive a riceburner???