broken trans modulator bolt

[carnut4real]

I do know how to adjust it, but it is in such a tight area that I have to remove it to adjust it. I can't even fit a small screw driver from an eye glass kit between the transfer, and modulator. I was not aware that the pin is small enough to fit in the modulator, as my knowledge of the transmission is limited. maybe the pin is missing, and that is why fluid is pissing out ? I changed it in my garage, and saw nothing come out, but it could have fallen on the support or something ? I have no way of looking in the hole where the modulator goes, so not sure how to prove whether the pin exist or not ?