Dad's 2006 Dodge Cummins tranny temp?

[EArmsF350]

Dad's putting a Fass fuel system on his truck. Already has Edge Attitude and large flow through exhaust. He is worried about his tranny temps running too high once he has enough fuel to actually get out and "RUN" his truck. I advised to get a huge pan like I did with my 4R100 or to look for a larger tranny cooler. Anyone know about a Dodge? I feel embarassed even stating Dodge on this thread but trying to help an old man out.