Drill a hole and tap it for a vent at high point.I am not up on that box but my take is as long as the gears that spin at high speed hit the oil and oil is lower than in and out seals. I would try it. Not that I know but my thoughts are look inside move the gears a bit ,if it looks like it will work do it then you know for sure and get what you want or find out. Hopes this helps ,it's 2-3 minutes of typing for me. :hammering:
