V drive blows oil from vent and shifter very hard

The oil level is definitely not over filled. I remove the vent and attached a tube of approximately 2 ft long and put another vent in it. This goes to a catch can and I must refill the trans every time I use it. I have swapped the coolers and both trans cooler lines from the starboard to the port engine oraibi Drive and it still does the same thing. Anyone have any other ideas? The same is to play the fluid out under heavy load I imagine like getting her up on plane. I am unable to see the fluid in the clear tube at idle in either forward or reverse.
 

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