Thanks, I checked and the transfer case I have on the TH350 is a 203. Since it was installed in the 61, I assume I have the crossmember needed to mount 4l60/203 in the truck. I saw a comment on another board that mounting a 203 to a 4l60 was a dumb idea. I am guessing that is because the transfer case is mechanical controlled and not electronic. I will still have to lock my hubs so electronic selection really does not gain much. is there another reason not to reuse the 203?
