Yup, many of us have the same tru-cool 4739 max and got it from the same place. Simple to install in line with the OEM and you should have more cooling power than you need.

Quick tip on tranny temps and towing . . . If you've been towing for a while and then come to a stop light for more than a few seconds it is best to put the truck in Park. If you don't you can actually see your temps slowly start to rise. Not the end of the world but every bit helps and will prolong the life of the tranny.