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Radiator question

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Old Jun 15, 2023 | 08:47 AM
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apache84
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Radiator question

My late 99 SD V10 has fittings on the radiator for the trans cooler, however the fluid is not run thru the radiator. Im pretty darn sure its the OEM radiator as well. This normal? and would there be any issues utilizing the radiator cooler in line also with the trans cooler?
 
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Old Jun 15, 2023 | 09:20 AM
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Mark Kovalsky
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No 1999 Superduty left the factory with a trans cooler in the radiator. That is not the original radiator.

You would have much more trans cooling if you used the cooler in the radiator. The correct routing for best cooling is from the front of the trans to the radiator cooler, then to the aux cooler, then to the rear of the trans.
 
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Old Jun 15, 2023 | 08:05 PM
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Thanks Mark That is what I will do then.
 
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