So I added that 30,000 GVW plate and fin transmission cooler today. The previous one was a compulsive buy and it was a tube and fin 3 row rated for 23,000 GVW. Turned a 1 hour job into a 4 hour job with some small mistakes and misplacing tools. It was freaking hot. We'll see how it does this weekend when we travel down to the dam by the water. It's much hotter in the south and south east of the city from where we live. I have noticed since I bypassed the radiator that the engine temps have been lower which is nice in this heat.