1999 Dodge durango 5.2 auto. i have a extra trans cooler that was infront of the radiator when i bought it. runs from the top of the radiator to the transmission cooler, out of the trans cooler to the bottom transmission lines. I can not find the line that wraps from the top of the radiator around to the cooler infront of the radiator. its pretty much U shape around the radiator and straight into the cooler. looks like a factory line but just can not find it. its leaking really bad out of one of the lines in that area not sure which one due to the rad fan blowing the fluid everywhere

 

Well that's interesting..... None of the diagrams I can find show an external cooler..... How are the lines attached on either end?