Hi, I searched online but I’m not 100% sure I got the right answer. Can someone confirm this fitting type? My rear end is out of an old Cadillac. The cylinders are eBay replacements. The threads seem to be 7/16-20 but when I look down in the cylinder hole it looks like a funnel, not a volcano. What kind of fitting goes in here? It’s not a double flare correct? Thank you
