I found a 4wd th400 today but it did not have the np208 like I was looking for. I was unable to tell if it was a 203 or a 205. How do you tell them apart? It was in a 1980 3/4 ton 4x4 truck. The shifter did not have any markings to indicate a 2hi or 4hi so that was no help. The shifter did have the same stamping on the knob that I have seen in rigs with 203's if thats any clue. Is the tail shaft housing shorter on the 205 than the 203? I think it looked shorter than a 203 I saw the other day. Got any pics of the two?