[jdean]

I also run a trans cooler on my C6.....and it rarely gets over 150 degrees. I have it mounted flush with the bottom of the radiator facing the front. You should be able to get a reducer with a barbed male nipple end on it. Then run 3/8 ID hose from the tranny lines to the barbed male ends on the cooler.

I use a B&M cooler, so it already had the 3/8 nipples on it.