Ok the upper transmission fluid line is the return line right? I just want to make sure as I'm installing a 12,000lb GVW trans cooler this weekend. I want it to run through the factory cooler in the radiator first then through the cooler and back to the trans return line.
No one knows? I've done a search but nothing to answer my question comes up :hick:
Found it on clickclick racing. The lower line is the fluid return to the trans pan.