Ended up with a FG85 today. Seems to run great other than no 1st or 2nd gear. The shift linkage attaches to what appears so be a plunger valve on top of the transmission. 3rd and 4th gears shift very easy with the shift leaver but 2nd is somewhat harder and 1st is almost impossible. Could there be some o rings torn and binding in the shift valve?
Additionally I forgot to mention. A main transmission light on the console is illuminated when in 2nd or 1st gear. I don't have the manual but would guess this is a low pressure indicator and would lead me to guess fluid is bypassing somewhere not allowing pressure to build when it 2nd and 1st.