well as i always figured, i don't know what I'm talking about. Mine is an overflow hole there, but then again my t400 is a Buick housing. the bolt i was talking about is lower one near the bottom in the center of the pic right under the cooling line holes. Not sure what its for. just stuck in my mind that i had a bolt in the trans i didn't know where it went.
You might have too much fluid in the trany.. Check the level while the motor is running, and after you've sifted it through all the gears while standing still at idle to make sure the trans has spun up all it can handle. If its leaking out that hole after that, then theres too much fluid in it.
You would have been better off not even considering my opinion in the first place. LOL. something my wife has already learned. LOL
