So frustrated on this…so I finally received my Jegs line kit. Online it says 3/8” line and 1/2-20 tube nuts. Perfect, that’s what I set up for and got the above adapters for.
When it came, the box says 5/16” line. I measured to make sure it’s not just the box it was packaged in and it is 5/16” line… And now looking online looks like there are not 1/2-20 nuts for 3/8 line which makes it so the adapters above won't unless I go with 5/16 line.
I'm gonna have to just deal with the 5/16 line, esp since my inline trans cooler is also 1/2"-20.