02J transmission pivot pin 0-ring size

I have a small leak coming from the bottom pivot pin.


(Image found online not my image)

Does any one know what is the O-ring size that I need? I just would like to make sure i have an O-ring that will work before doing the fix.
The O-ring size that I am looking for are the 4 small ones in the 02J gasket seal kit.


(Image found online not my image)

If I drain the transmission fluid and leave the transmission in neutral can I remove the pivot pin, install a new O-ring and reinstall it without any ill effect?
thank you

Doing a bit of necromancy here, but this was the top result when I searched for "02j pivot o-ring". To save anybody else the hassle of digging through search results if they wind up with a leak there, the part number is N90362001. It's the same for 0A4 transmissions, which is what's on my car.