904 Transmission Fluid Recommendation

HONDA Produced the bandless transmissions as their Hondamatic H2 way back in the early '70s & in later versions of the H3 & H4. Used Dexron fluids in them well into the 90s. All were band less transmissions.
Those were 2-speed automatics , right ?
Like I've said previously , DexRon used to be different ( ATF , Suffix 'A') prior to 1973 ; I'm certain that Honda didn't specify ATF , Suffix 'F' in their transmissions .
Then there were the Toyo-Matics , which were based upon the PowerGlide design ...