Ok when you are standing in front of the truck with the hood up you can see the radiator for engine cooling, my question is what is the black cooler that is mounted on the front of the engine radiator? is that a stock tranny cooler or ?

 

If you've got an auto then yes, there should be a tranny cooler way out front (or is it just part of the tow pkg?), but there should also be an AC heat exchange unit as well.