I am curious, which vent on the transmission is the outlet, and which is the inlet? The reason I'm asking is, I want to put a small muffin fan on the vent to get more airflow through the belt housing and I need to know airflow direction.

 

The Auto tranny has two "exhaust" vents, the large side opening and the opening under the seat by the air box. The inlet is the vent that starts on the bottom front of the tranny housing and is snorkled up under the front plastic.