Tranny Cooler Help

Those fittings are all huge compared to the factory sized lines. Are you planning on feeding it from the stock cooler line feed & return?

I was told by a reputable transmission builder that the feed lines are not part of the main circuits as much as they are bypassed near the pump as extra fluid not used to operate the transmission at a given instant. While they are obviously all part of the transmission fluid circuits, the longer the fluid stays in the cooler, the more cool it will become. You do not want to restrict flow at a cooler. With this cooler, the stock feed and return lines themselves will be the limiting factor.