I am almost certain that the silver 9 channel radiator in the picture below is the trans cooler?(correct me if I am wrong). Anyways I am wondering if this cooler is enough to keep my trans cool, do I need to upgrade it, do I need to add a temp gauge, or should I not worry at all? I have an 2005 f150 4.6 running 35x12.5 tires level kit and stock gearing. I do little to zero towing and live in mild temp (Maryland). I do spend some time in the never ending hills of WV (Route 68). What kinds of temp should I be expecting with this cooler and the big tires? should I stop worrying about it since I almost never tow?

 

That is it and you are good. Leave it and only worry about keeping good Mercon V fluid in there.

D