Thread: TH350 cooler flow

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There is no counter-flow/parallel-flow option on the tranny cooler as I understand how they're made. It's a simple finned tube heat exchanger running across (or across & back in) the bottom (vertical flow radiator) or vertically in the cooled fluid end (cross-flow) tank of the radiator where the engine coolant temperature is pretty well fixed once you're up to temp. The tranny fluid cooler doesn't "see" the top to bottom or side to side differential of the engine coolant, unless my understanding of how radiators are made is totally wrong. It runs side to side in the bottom tank, or up & down in the cross flow, and the engine coolant temp is relatively constant. If in doubt call Griffin - they can tell you how your's is built and eliminate all question, again IMO. If you call, let us know what they say - it's always good to learn.