I like the idea of not running the radiator cooler to avoid contamination but would running my 40K Trucool be sufficient? Also are their any drawbacks if you don't run the radiator cooler?

 

Dont do it Russ, run the Rad and the cooler in combo, thats how mine is and it works great. Never over 150-155*

 

Why would you want to chance ruining your transmission? That's just stupid. All the trucools I've installed over the years I bypass the radiator with no problems. There are enough people out there have burst the end tanks on the radiator for me to not feel comfortable. Running through the radiator heats the fluid up compared to just the straight cooler. In the northern climates you can run an oil cooler bypass so your trans will get up to temp in the cold months. Not to mention running through the radiator adds more connections and therefore more chances for leaks. Personally I'd rather have the least amount of a minute chance for a flammable liquid to be shot all over my hot engine.

 

The radiator runs hotter than the trans, therefor you guys that run your trans fluid through the rad are actually heating up your trans fluid.

My temps are typically 130-150.

 

Not sure if they will do it for you these days. When I was there I made them for a few guys. Today there are other solutions out there that just make more sense. See below

Here is another place for that kind of stuff. Sweet Performance Products, Inc

 

yup I picked one up from the ebay link.

 

Driveshafts will be back the middle of next week.

 

Vince, what's your opinion of bypassing the rad up here in the midwest climate?

 

I know I'm not Vince... but just my .02.

I originally had mine running through the radiator and then into the tru-cool, and my trans temps got up to more than I wanted (still safe, but higher than I wanted @ about 180 @ a long idle)

I decided to bypass my radiator and I couldn't believe the difference. In 100+ degree heat, my trans temps were around 130-135 while driving, and 150 at the long idle state. I may have to grab the bypass to run in the winter (we get down to -10 to -15 usually, and I've seen -27 a couple times.) I'm sure up north you'll have to run the bypass in the winter, but after reading the horror stories about ruptured in-radiator coolers... there's no way I'll be running mine through the radiator again.

 

I run mine through both, and my temps are 130-135*. Even after a full pass at the track. I don't run the bypass, and don't recommend it.

As for the ruptured trans cooler in the radiator..... I've only seen it one time in over 20 years first hand. I have read about a couple of others. Seems pretty far & between to be worrying about it that much. You should be more worried about your 4L60E staying together than your trans cooler.....