Stocker, I looked at your sketch and it looks like you have the lines labeled backwards as everything that I have read indicates the return line is on top.
I want to get my cooler installed finally.
From what I have read it looks like I basically need to just cut the return line at the rubber, double barb it, run to Hayden cooler, double barb it, run back to return line going to transmission.
Does that sound right or am I making it too simple? LOL