Question: After market Transmission Cooler Question

prostreeter600

Street rodder
Jul 18, 2010
894
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Dallas Tx
My mounting options are under the passenger side rear fender in front of rear tire or inside the bed . I'm already running a fuel cell in the bed and a 15# NOS bottle . I would rather keep it hidden even if I have to use a 4" hole saw to the interior panel of the bed for holes for air flow or air draw for the fan
 

Mike L.

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Aug 12, 2006
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Fullerton CA
I have a Kodiak in here I'm adding a cooler to (for some reason they only have the cooler in the radiator tank on this one without another external cooler) because the trans temps started getting a little too hot towing after the trans was built. I'm using a Hayden 1290 cooler with a Derale 16818 shrouded electric fan. If you can find a place to mount that monster on your truck, I bet it would do a lot to keep your temps down.

What model converter did you install?
 

CaptPhil

Active member
Sep 10, 2011
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Delaware
Unless you are going yo run the fluid through the radiator you will need a very big cooler. I had two setrabs with fans on them in the bed and they barely controlled the fluid temp. I lost a fan and one couldn't control the temps. Ran it back through the radiator and the temps are fantastic.

I would keep it going through the radiator, that liquid to liquid heat transfer is way better than what a fan can provide.

Sent from my SM-G900V using Tapatalk
 

Mike L.

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Aug 12, 2006
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The radiator heat exchanger does the initial heat knock down of the fluid. Without it you will run hotter as below 35 mph, there is no airflow to the oil to air cooler.
 

2004LB7

Well-known member
Dec 15, 2010
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Norcal
Doesn't keeping the radiator in the loop also helps the transmission get up to operating temp sooner too as the heat of the engine will warm the trans fluid?