Originally Posted by redfishtd

My step sons were to poor to use anti freeze for two years , coolant turned to iron mud ,the redneck bulb under a covered hood stopped it from freezing but this destroyed motor and radiator .We had to buy a wrecked vehicle to get enough parts to fix it .

Originally Posted by dukedkt442

Dont mean to hijack, but never understood this mentality: “I can’t afford coolant, so I’ll melt my engine and then have to afford to fix it.”

Originally Posted by redfishtd

I have the tow package with trans cooler . No way you should do away with the radiator part of the trans cooling circuit . I pull heavy loads in florida at 95 to 100 degrees .The stock system works . If your fan and coolant working and maintained it should be good to go . . Refresh your coolant using distilled water from wally world .Do not go over 50/50 mix . Radiators do go bad they really can't be fixed anymore ,tubes too Small . Good news they are cheap online . If you don't change coolant when you should and use quality stuff you will have trouble . Get it out of there, final flush with distilled water for sure ,boiling regular water will crust up with lime just like a tea kettle .Replace your coolant saver tank cap it is a pressure cap!!!!! Replace thermostat while you are at it . .Burp system with squeezes to top rad hose get air out .
I run an ac temp gauge on my trans cooler in front of radiator just to keep an eye on it . Heat kills transmissions . Use drain type pan on trans to keep trans fluid fresh .Every 30k or so .4-5 quarts at a time over several weeks . Mercon V only by the case .amazon .
My step sons were to poor to use anti freeze for two years , coolant turned to iron mud ,the redneck bulb under a covered hood stopped it from freezing but this destroyed motor and radiator .We had to buy a wrecked vehicle to get enough parts to fix it .

Originally Posted by garden spyder

I put in an overkill transmission cooler, because Like you, I tow at maximum capacity. It has a thermostat and fan on it, that kicks on at 190. It helps tremendously, and the reason I can justify it, is there is not much air in the high altitudes while vacationing in the mountains, pulling a car trailer with a Jeep on it. It takes as much cooling as you can make happen at high altitudes. I do still use the radiator cooler, and the stock 9 row cooler, but it runs through those first then through what I believe is a 25 double row cooler. My transmission stays cool, but I have heard it kick on once or twice when I was arriving after a long hard pull. I monitor my temperature through the Torque Pro app.

Originally Posted by redfishtd

I have the tow package with trans cooler . No way you should do away with the radiator part of the trans cooling circuit . I pull heavy loads in florida at 95 to 100 degrees .The stock system works . If your fan and coolant working and maintained it should be good to go.