On a th400 which line comming out of the TRANSMISSION is the pressure line (by that i mean the line that goes to the top of the radiator)

Also can the transmission pressure line go through the cooler first then the radiator or does it have to go through the radiator first before going to the cooler? The way I have it now its going through the cooler first and im pretty sure its wrong but if it goes to the radiator first ill have to make a new line.