4Door, that is how this started, as I have completed this swap on my car right before I did the 4L60 delete mod. In fact, it did work really well, that is using adapters to go from the hard line to SS braided line.
Since the hard lines on my dads car were rusted, I decided to replace the hard line. I have new lines that I can bend and flare to replace the hard lines I removed, but it is so much easier if I could just use SS braided line to go to the external cooler, as I would only have one transition from flex line to hard line.
I guess the question could be simplified to: What thread size is the external cooler on a 9C1, and is the flare a 37 degree flare?
95 9C1 - T-56, 4.10's with Trutrac, Tri-Y's, Hooker cat-back, ERE42 Sitting in House
74 Silverado short wide - LT1/T56 Ready for Transplant
11 Xcab Silverado - 5.3/6L80E, 4/6 drop, exhaust, blackbear tune...
95 9C1 - Heads worked by Kuntz and Company, LE cam, tri-Ys, Hookers, "Dads Car" May he rest in peace