Hidden Winch and Transmission Temps

Any measurable increase in transmission temps for those running a @usoffroad hidden winch setup on their 2nd gen? When towing my trans temps have reached 230f and I want to make sure the installation of a hidden winch setup won't cause those temps to increase more due to the obstruction of the lower valance opening

 

Can't be any worse than an ARB or similar plate bumper. I would think with the U.S.Off-Road design there would be enough air flow around it.

 

I'm picking this up from Timbo tomorrow. See the holes in the bottom for air flow. I doubt there is any air flow issue's.

 

tranny can be working overtime at slow speeds and no airflow at slow speeds

http://www.ebay.com/bhp/transmission-cooler-fan