Huh. From your description of all the minitruck parts I would have thought everything would work. The longer body Aisin/Asco lockouts came on '76-'78 FJ55s, and I think your only other option would be to find the longer body Warn lockouts for '76-'78 FJ40s/FJ55s.
I don't know if it matters, but is the lockout in the locked or unlocked position when you are trying to install it?
"Stay the Trail," "Tread Lightly," and "Leave No Trace" ethics
Rising Sun Bio
2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering,
soon to lose the Sanden OBA
to go back to factory emissions
Limited TRD 2UZ-FE FOR SALE SOON
Up next: Something that makes a funny whistling noise...