51 Hornet ATF Recommendations?

rumblefish351

I'm replacing my master cylinder and while I'm down there, I see the drain plug for the automatic transmission fluid (ATF). It's probably been 50 years since it's been drained and changed. Any suggestions on what type of ATF I should fill it with? Please say Type F or Dextron or something that I can find. Thank you.

tbeilke

Dextron is what I use.

cheyenne7271

Dexron III or older, don’t go with IV or higher