A745 Transmission Fluid Change

Hi folks. This is a pretty basic question, so bear with me. :p

My '64 A100 has its original /6 and A745 transmission and I'd like to check the tranny fluid, but I can't seem to locate the dipstick. There appears to be only one in the engine compartment for the engine oil. My service manual isn't helpful at all. Gosh I am feeling pretty dumb atm.

Please help! Thanks

Ok.... In your service book go to the LUBRICATION section, page 5 fig 5 has a pic of the fill and drain plugs. Should hold about 3.25 pints of 80W90 gear oil. Fill it the same way you woould fill your diff.