I have a 2004 Dodge ram 1500 quad cab, with the 5.7 Hemi. I have a transmission fluid leak, but I can not find it. Not drips on clean driveway, I can not find any visible leaks looking up from underneath the truck. I have checked the lines running to the front cooler, still nothing. I am losing enough to trip the transmission overheat warning light on cluster. Once a year.

do this video to find the source https://www.youtube.com/watch?v=LYzTyTlnsr8