1975 A833 od, any useful parts for non od boxes

Hyup, got it documented in a binder I titled "Gearage"

As to which one you have, because the ratios are so very close together, I think the only way to know for sure is pop the cover and count the teeth. I tell you what tho, I sure hope you got lucky and have the 20Toother, cuz that little guy, won't take no crap I've seen more robust gears in much smaller 4-banger trannys..That guy should have an interlock connected to the carb, so you can only get into it on the primaries, cuz any secondary at all is enough to shred all the teeth off it.
Yeah so I retired those boxes many years ago.