Rebuilding Trans Lines- Help Finding Fittings

67Dart273 said
"Double flarel" and "inverted flare" are not separate "qualities."

There are different ANGLES of flare. AN also similar to JIC fittings..........AN is originally "Army-Navy" (at the time there was no air farce) and typically aluminum, originated mostly on aircraft. The are 37 degree flare angle and can be either double or single flare

SAE flare is what you see common in "traditional" auto parts stores and hardware stores. These can be any material but commonly are brass. They are 45 degree flare angle and can be either double or single flare.

Inverted flare is I think a stupid name. SAE flare and inverted flare USE THE SAME FLARE on the tube. Only difference is fittings. SAE 45 flare is a female nut that fits a male flare adapter. INVERTED flare is like brake tubes.......an male thread nut into a female adapter.

Single / double flare..........Single flare is when you put a piece of tube in a flare tool and flare it in one simple operation. This leaves the cut end of the tube "at the end" and is thus liable for irregularities and more important, SPLITTING at the end

Double flare is like a hem on clothing. The special tool upsets the tube in sort of a barrel shape and then that adapter is removed and finishes the flare by mashing down the flare so that the raw edge is on the back

Google stuff like "using a double flare tool" and you'll see

Bubble flare is sort of like "the start of" a double flare but the thing is not completely mashed down. I don't personally like them and see no purpose for them. I think they originated in Europe, AKA Vee Dub and the sickness spread from there.

Google up a fittings catalog as I mentioned earlier and look through it

https://www.eaton.com/content/dam/e...ctors/Eaton_brass_products_master_catalog.pdf

I see what you mean on the difference between the male/inverted and female/double fittings and the flare.

I've been reading a lot and watching a lot of videos. I'm on day four of a mandatory 14 day quarantine for work. I'm inside a tiny room with a tv, bathroom/shower, and I have my meals delivered to me by coworkers, so I have a lot of time right now.

I've watched a bunch of AN videos as well, and even have a 37 degree tool enroute to the house. I thought about doing some AN stuff until I tallied up the cart at jegs.

Looks like I'm going to get some 1/8 npt inverted flare nuts. I also ordered a B&M trans cooler with 1/2 NPT inlets/outlets. I'm going to plumb rubber trans line between the radiator and cooler and run the return from the cooler through a 1/2 npt to 1/8 npt reducer using hard line I think.

Thanks for all the help 67Dart!

Edit: I grabbed 1/8 npt male to 1/2-20 (5/16 tube) brake line adapters to go into the trans and rad. On the lines it looks like I'll put 5/16 tube flare nuts (1/2-20 thread) to go into the adapters.