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mplex2000 · 10-19-2018, 02:48 PM

Thought I'd update in case this information may help someone else at some point.

I spoke with both the converter and trans builders.

Circle-D said they recommend a cooler rated with a 40k GVW rating - very very large.

Trans builder said the one I have is perfect and he'd recommend running that. He recommended either not using the radiator or plumbing the radiator before the external cooler then back to trans.

So, 4l80e in a truck with a 3200 stall gets a very large trans cooler recommendation from these guys.

10-19-2018, 02:48 PM	#12
mplex2000 Registered User Join Date: Jul 2005 Location: DFW Posts: 463	Re: Trans cooler, too big? Thought I'd update in case this information may help someone else at some point. I spoke with both the converter and trans builders. Circle-D said they recommend a cooler rated with a 40k GVW rating - very very large. Trans builder said the one I have is perfect and he'd recommend running that. He recommended either not using the radiator or plumbing the radiator before the external cooler then back to trans. So, 4l80e in a truck with a 3200 stall gets a very large trans cooler recommendation from these guys.