Transmission oil coolers and how cool should you go.

My truck has max tow package and according to the computer the transmission temp is rock steady once it warms up. In fact, it is so steady that I sometimes wonder if the computer is telling me the truth but so far I haven't felt the need for any extra cooling. The factories seem to be doing a pretty good job these days.

To avoid heat out front you can also run a remote cooler with it's own fan if space is available. Some of the high capacity finned aluminum pans can also do a pretty good job it seems.

For the most part I agree with your link.

In the old days you could overcool your ATF because there was no way to control temp in them. The modern automatic tranny does not have this problem. The computer can control temp by various means so therefor you can pretty much put a big cooler up front and not worry about overcooling.

The biggest problem when I see people doing this is putting too much heat into the cooling stack. Modern TV's have radiators, ATF coolers, PS coolers, AC condensers, and diesels have IC's in front of this whole mess. Then people want to put another ATF in front of all of that!

That just adds more BTU's to the cooling stack and it "can" be the straw that breaks the cooling stacks back.

In the old days it was a very good idea to add additional cooling to the ATF. Now days, not so much unless you are dealing with a TV that was not designed to tow. That usually brings up another set of problems because those types of vehicles usually don't have a big radiator in them and tend to overheat because of it.

Anyway, I'm just trying to bring up some of the problems I have ran into over the years dealing with this type of stuff. I hope your mod works out for the best for you.