2 speed Power Glide

1964 2 speed automatic "power glide"

what fluid is recommended ?
what fluid do "you" use ?

whats the best why to add and check ?

thanks
TL

Dexron was used in these trannys, which isnt available, but Dexron 111 is...........use that. It will work fine. Drain all the old stuff and get a new filter while you are at it.