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Discussion Starter · #1 ·
Just hooked up my 34' trailer and the hour drive from the pickup spot back to the house it ran 180-196 degrees. Its about 9,000 pounds. Im headed to Colorado, just wanted to know at what temp i should start getting concerned.
 

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I don't have a truck
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Probably, but it's not very big. Go look un front of your radiator on the support, you should see a little 6" by 5" thing, that's the cooler.


Mine is roughly 3x the size of the stock one. I tow a boat on 105* days and it doesn't get over 185-190
 

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Yeah I'd say 230+ you should think about stopping to let it cool. Anything below that and you're fine. If you maintain a speed where your converter is locked you'll be fine. The only time I see my trans temp shoot way up while towing is when I'm either in stop-and-go traffic or pulling a hill with the converter unlocked. I have a 40k Tru-cool cooler though and have yet to see my trans temp over 185. If yours heats up on this trip you should think about upgrading the cooler.
 

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Discussion Starter · #8 ·
Yeah I'd say 230+ you should think about stopping to let it cool. Anything below that and you're fine. If you maintain a speed where your converter is locked you'll be fine. The only time I see my trans temp shoot way up while towing is when I'm either in stop-and-go traffic or pulling a hill with the converter unlocked. I have a 40k Tru-cool cooler though and have yet to see my trans temp over 185. If yours heats up on this trip you should think about upgrading the cooler.

thanks. how can i tell if my converter is locked or unlocked?

How much was your 40k tru-cool cooler?
 

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Discussion Starter · #11 ·
RPM jumps around in overdrive, you'll be able to tell.
oh ok, gotcha. I was going to take it out on 35W by the racetrack and test it out see if I need to make any adjustments.

Do you know of any place local around here to get this tranny cooler? or get it installed?


Tru-Cool MAX transmission cooler
# LPD47391 Tru-Cool 40,000 GVW rating, 45,000 BTU rating
8 1/2 x 22 3/4 x 1 1/4 with 3/8 inverter flare (fittings are included for thread to hose barbs)
*No external thermal bypass*Great choice for southern states where the winters are mild.



http://www.transmissioncoolers.us/M...egory_Code=trucool-MAX-cooler&Product_Count=2
 

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HOT AIR BALLOON OWNER
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Temps aren't that bad seeing is how it's hot as fuck currently in Texas. Consider dropping down an OD (or just into 4th if you have those 3.42:1 gears) if you can to pull it, you should have that 6L80E.

It should run cooler and keep the truck from hunting for gearing.
 

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Just so everyone knows, many of the transmission gauges in the clusters are shit. They're the exact same as the coolant tempt gauges. I have an aeroforce scan gauge and Efi live so i'm able to tell down to the 1* how hot my transmission is. My escalade cluster will read 180-185* at times and I've seen my transmission temps as high as 210* when it showed that. Just be advised because the stock gauges are made for idiots that don't know how to operate a vehicle.
 

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Just so everyone knows, many of the transmission gauges in the clusters are shit. They're the exact same as the coolant tempt gauges. I have an aeroforce scan gauge and Efi live so i'm able to tell down to the 1* how hot my transmission is. My escalade cluster will read 180-185* at times and I've seen my transmission temps as high as 210* when it showed that. Just be advised because the stock gauges are made for idiots that don't know how to operate a vehicle.
:word: for the NBS.

But for the NNBS it's a digital readout that's accurate down to 1* like you said.
 
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