Transmission and transfer case Oregon

https://klamath.craigslist.org/pts/d/87-ford-250-automatic/6688534695.html

To me, this looks like an E4OD. I thought Ford didn't use them in F Series until 1989. I assume () it would be a BW 1345 or BW 1356.

I would agree.

E4OD and not introduced till 1989.