Thanks. I think I've actually narrowed it down to the transfer case, not the transmission. It was driving fine although the transfer case had had a noticeable clunk to it when I engaged it in Drive every time. Last week I was driving fine and went around the corner and all of a sudden it stopped moving and wood grind every time I hit the gas. I assumed this was the transmission, although I've never heard a bad transmission actually grind, but I figured that the rear differential was hooked directly to the transmission and only the front differential was hooked to the transfer case like four wheel drive. I realized upon closer inspection, though, that both the front and rear drive shafts hook directly to the transfer case.
