Fitting help

[Comin' in Hot]

One of my steel braided lines for my trans cooler developed a hole. The old line had flare fittings going into the cooler. I want use -6 AN fitting, but I'm having trouble finding an adapter, the cooler fitting looks like an inverted flare and is around 3/8 NPT but not quite, any ideas?

http://img.tapatalk.com/d/13/06/22/a4ujase3.jpg

http://img.tapatalk.com/d/13/06/22/u4u6u3en.jpg

[RubberCtyRauder]

It's the flare that does the sealing so no NPT would be required. It's probably a fine thread..9/16-18 is my estimate

Go to Summit Racing or even Russell website for fittings and adapters.