Duramax Tranny Cooler

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AlisoBob
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Duramax Tranny Cooler

Post by AlisoBob »

Sometimes I get bored, and do shit just to do it. My tranny never really ran hot, but its going to be warm going to Pismo later this week, so I thru down for a new cooler.

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Its made by Earls, P/N 82510ERL

Its 2x as big with 3x the area of the stock cooler.

It took half way home towing the toyhaul to even get the needle of the peg.

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Got everything to make the brackets at Home Depot. Nothin' fancy.

Not visible are the washers sitting between the top of the cooler and the bottom of the aluminum mounting plate. Without them the aluminum bows....

Seems to have droped 35 degrees off the tranny temps.


It uses all the OEM fittings and hoses... super easy.

My truck is a 2005 LLY, I think it will fit the earlier trucks, but in 2006 the whole cooler stack looks different.
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Hellbear
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Post by Hellbear »

Nice! You got the thing off your radiator too. I bet that helps a little.
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AlisoBob
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Post by AlisoBob »

The OEM one sits about in the same place.
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britincali
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Post by britincali »

I put an F250 superduty cooler on mine the week I got it, between that and the race trans valve body im sure thats why my trans is still perfect after 140,000 very abusive miles :D


Heat and slippage is what causes trannys to take a shit, no matter the HP level. Eliminate the slippage with a valve body and deal with the heat with a big cooler and your golden.
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AlisoBob
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Post by AlisoBob »

britincali wrote:im sure thats why my trans is still perfect after 140,000 very abusive miles :D

Thats no lie right there....
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dannygraves
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Post by dannygraves »

very cool. I will have to see what my tranny temps look like during the tow out there. I just changed out my tune for the more tow friendly one with a 55mph TC lockup if I keep it in lock up most of the time that should really help the temps. When I was towing the trailer home from kingman I was running my race tune with 45 mph lockup and my EGTs would get a little wild when I got stuck in traffic below 50 mph but the trans temps didn't blink.
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hoofarted
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Post by hoofarted »

dannygraves wrote:... but the trans temps didn't blink.
then again, the stock Ford gauge isn't accurate at all...at least not on my older one. Thats why I run an external one on my pillar. But I am sure you'll be fine.
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dannygraves
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Post by dannygraves »

my tuner taps into the stock sender, from what I hear on my year range the stock sender is accurate.
'09 kx450f 4-Poke
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80
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Rhino89523
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Post by Rhino89523 »

My truck has been running strong for years, not one working gauge, I run it off smell, feel and sound....not kidding.
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AlisoBob
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Post by AlisoBob »

Rhino89523 wrote: I run it off smell, feel and sound....not kidding.
Thats how I judge my wifes disposition....
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Hellbear
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Post by Hellbear »

AlisoBob wrote:The OEM one sits about in the same place.
Nice! The one that was on my Chevy was right on the radiator.
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