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THE Tru-Cool 40K GVW Transmission Cooler Install Thread

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Old 10-06-2010, 02:18 PM   #1
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Default THE Tru-Cool 40K GVW Transmission Cooler Install Thread

I installed one of these way back in the day(2004) and since then get questions about it about once a week sometimes more. This last time around when I installed one I took a bunch of pictures and will be doing a little write up. I installed mine with -6 AN lines and fittings but I know many do it with factoy lines. The purpose of this thread is to condense ALL of the tru-cool info into one thread so we can stop having the 40 threads a week about it. If you have some helpful links/pics post them up. Im going to slice and dice this thread as we go to get the info into a more readable format. When I get home tonight Ill add my pics and instructions in.

The things we need to add are:
Rear fitting for the 80e when using -6 line
Mounting hardware
Re-using factory trans lines
What to do if you dont have a factory cooler
Routing of lines when using an AN setup
Any part numbers relevant to installation
Where to buy

I think I can find most of these when I get home, Id do it right now but Im on my phone. I just figured some people may have some useful advice to add to this type of thread.
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Old 10-06-2010, 05:02 PM   #2
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I've got some info I can share about using factory lines, when your truck wasn't originally equipped with them. I can't remember the part number for the kit, but it may actually be in one of the pics that I posted up a while ago...I had a bunch of questions and threads not too long ago when I was researching how I wanted to install mine...
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Old 10-06-2010, 06:17 PM   #3
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Big things people (like me) need to know:

-What is the fitting thread size on the trucool cooler?
-What is the fitting thread size on the 4l60e?
-What is the fitting thread size on the 4l80e?
-What is the approximate length from the cooler ports to the front central location of the truck?
-What size hose is adequate to use?
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Old 10-06-2010, 06:29 PM   #4
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Quote:
Originally Posted by Atomic View Post

-What is the fitting thread size on the trucool cooler?
Here's the fitting that you can buy at Napa, part number 730-4953. The factory cooler line will snap right in.

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Old 10-06-2010, 06:37 PM   #5
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I dont want to use the factory lines at all, I want to make some hoses and need to know the fitting sizes...
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Old 10-06-2010, 07:23 PM   #6
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Quote:
Originally Posted by Atomic View Post
-What is the fitting thread size on the trucool cooler?
-What is the fitting thread size on the 4l60e?
-What is the fitting thread size on the 4l80e?
-What is the approximate length from the cooler ports to the front central location of the truck?
-What size hose is adequate to use?
Also tuning in for some info...good stuff to know right before a tranny swap. Might just have to switch over to an AN setup...
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Old 10-06-2010, 10:10 PM   #7
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Quote:
Originally Posted by Atomic View Post
Big things people (like me) need to know:

-What is the fitting thread size on the trucool cooler?
-What is the fitting thread size on the 4l60e?
-What is the fitting thread size on the 4l80e?
-What is the approximate length from the cooler ports to the front central location of the truck?
-What size hose is adequate to use?
I'm going to point Tom (fastnblu) in the direction of this thread also, as he did a complete AN setup when he swapped his trans...I remember he used -6AN...

quick search for "trucool" (I knew that I'd find some of my old threads lol)
https://www.performancetrucks.net/fo...archid=2998154
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Old 10-06-2010, 10:23 PM   #8
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Quote:
Originally Posted by 1slow01Z71 View Post
I
What to do if you dont have a factory cooler
Any part numbers relevant to installation
Where to buy
Here's the PN for the GM aux cooler kit: PN:12497071

I combined this along the the bracket and hardware kit available from EAD for a plug and play set up.
*Non Sponsor Link Removed...my bad*

One note, when using the EAD brackets, it was necessary for me to notch the center support bracket of my grille...this is not necessary on 03+ models...

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some of my old threads...

https://www.performancetrucks.net/fo...hlight=trucool

https://www.performancetrucks.net/fo...hlight=trucool

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Old 10-06-2010, 11:00 PM   #9
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Subscribed.
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Old 10-07-2010, 03:13 AM   #10
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I know that on a 4l80e the rear fitting (return side) needs to be made with a tube that extends into the case. About 3/4" if I remember correctly. I have one at home I can take a pic of when I get home this weekend.

Here's a little tip on running modified factory lines I had to learn the hard way. When converting from the 60 to the 80 it requires that the return side be lengthened significantly as the return port on the 80 is in the rear of the tranny. I cut the factory line and lengthened it with a rubber hose. Secured the line very well (or so I thought). I was using the factory type fitting and line that use the little e-clip to hold in place. Over time the rubber line let the hard line move around in the fitting enough that the clip no longer held it in place. I was on the freeway when it happened and it wasn't pretty.
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