That's good to know, as Dexron is readily available, and I would presume the transmission shop would have used that. I will double-check though.
I never thought about the O-ring for the dipstick tube. Are you talking about where the dipstick holder meets the transmission or the top-end of the dipstick that rests against the holder? I am asking as the transmission has already been reinstalled in the car, so it would require me to empty it and access the tube meeting point. Hopefully, you are referring to the top-end of the dipstick where it rests...as that would be easily done! With my luck, you are probably talking about the point where the tube holder meets the transmission, as everything with restoration is required to be a challenge according to our car bibles! LOL.
Thanks for the "crash course" on dipsticks! It appears that I am a dipstick for not even thinking about that! Sigh...
Happy Motoring!
Dan