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Anybody install an auxiliary transmission cooler on your van?
I previously towed my 6k # travel trailer with a half ton Yukon XL 5.3 and 4 sped transmission without an auxiliary cooler.
I just upgraded my tow vehicle to a 2010 e350 that doesn't have a tow hitch which I'll add next week. Although a one ton I'm curious if I need to add an auxiliary cooler.