Originally Posted by Farmjudge
If I knew for sure it was an option for the tow package, I would bypass it. Any more opinions?
The trans in this truck is weak, heat kills them. With the rad cooler only you will warm the trans with engine coolant long before it needs to be cooler, then when hot it will climb even in normal driving. Once the fluid hits 215 it begins to break down and should be replaced. If the rad has 190-200 degree coolant in it you will not have much room for thermal exchange.
Replace the cooler, hell bypass the crappy radiator and run a bigger cooler.