I'm going to plumb up my big transmission cooler, and want to run trans > radiator > cooler. What fitting types/sizes/threads are used on the hard lines? I spent about an hour googling, but no one ever answers the question about the stock hard line fittings that go into the radiator.
SOMETHING to -6 AN.
If you go to an auto parts store, they have cooler fittings and plugs for the radiator in the help section of orileys.