Overheating while towing

[penstar4ever]

I have a 93 D250 3/4 ton (518 tranny)and it came with a dealer installed extra radiator under the bed on the drivers side in front of rear wheel,and mine never gets hot even when I tow up hills,it has a heat switch when tranny fluid get a certain temp and turns on,boy it is great.Check with the Dodge dealer and see what and if you can have one installed. Good luck