Long's Tru-Cool 40K GVWR Trans Cooler Install - S-10 Forum
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Long's Tru-Cool 40K GVWR Trans Cooler Install

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Old 01-26-2010, 05:27 PM   #1
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Long's Tru-Cool 40K GVWR Trans Cooler Install

I sent these pics to SleeperS10 already per his request, but I wanted to post them up here as well in case someone out there wants to know what a 40K GVWR cooler looks like installed in front of CW's radiator and condensor.
Some may question wether it's too big or that there's too much media in front of the fans to cool, but I can attest that in 110+ degree days in SoCal last summer, these fans kept my coolant temps UNDER 200 degrees, regardless of the condensor and huge cooler. Anyway, enjoy!





Old 01-26-2010, 07:58 PM   #2
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

damn that thing is huge
Old 01-26-2010, 09:22 PM   #3
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Thanks again for posting those!!! That and the info on it to purchase one.
I just had mine come in today.

It will go great with my FLT Level 5.
FLT said the bigger the cooler the better.
Old 01-26-2010, 09:57 PM   #4
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

I didn't go as far as installing a trans temp gauge, but in those hot summer days in SoCal I removed the grille after a lenghty drive and the cooler was only luke warm
Old 01-26-2010, 10:09 PM   #5
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Quote: Originally Posted by Sleeper S10
FLT said the bigger the cooler the better.
i cant disagree with that

glad to see the cooling package worked well with all the parts installed like that, i wonder what the trans temps were? u thinking about installing a temp guage in the future?
Old 01-26-2010, 10:16 PM   #6
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

also what cooler is that? 4739? do you plan on driving the truck when its below freezing out?
Old 01-26-2010, 10:22 PM   #7
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Long Tru-Cool Max:
transmission cooler - #LPD47391 (w/o external thermal)
rating: 40,000 GVW, 45,000 BTU's
size: 8.5" x 22" x 1.25"
inverted flare HEX fittings: 3/8"
Old 01-26-2010, 10:25 PM   #8
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Quote: Originally Posted by Kampz69
i cant disagree with that

glad to see the cooling package worked well with all the parts installed like that, i wonder what the trans temps were? u thinking about installing a temp guage in the future?
I have thought about it, but I will prob never do anything that would facilitate the need of a gauge. I heard lots of good things about them though, and the full size guys have had great results with high stall converters.
Old 01-26-2010, 10:26 PM   #9
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

i guess my only concern with this is the required thermal bypass for areas that see below freezing...im assuming it operates like a thermostat somewhat and "opens" at a certain temp?
Old 01-26-2010, 10:27 PM   #10
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Quote: Originally Posted by Kampz69
also what cooler is that? 4739? do you plan on driving the truck when its below freezing out?
I can't remember if mine is 4739 or 47391....mine is the one without the thermal bypass and no, teperatures here are too temperate to worry about one.
Old 01-26-2010, 10:28 PM   #11
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

thanks for the info
Old 01-26-2010, 10:29 PM   #12
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

I have also heard about those thermal bypass deals failing, more than I think is allowable. I don't have all the proof to back that up though.
Old 01-26-2010, 10:30 PM   #13
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

mine is also without the bypass. i don't winter drive mine.
Old 09-29-2010, 08:26 PM   #14
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

I would like to order this tranny cooler but i will be driving my blazer all season long. What do you have to do different with the cold weather bypass?

Also, what fittings and lines did you guys end up using?

Did you use new line from the tranny use whats already there?
Old 09-30-2010, 12:22 PM   #15
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

Since this thread was resurrected I was wondering if you can tell me do you plumb the pressure side on top or bottom like a radiator?
Old 10-02-2010, 03:31 AM   #16
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Re: Long's Tru-Cool 40K GVWR Trans Cooler Install

The Long's cooler I have has both inlet and outlet on the bottom of the cooler. I just ran the lines.
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