Brake Line Fittings
 

What fittings should be used with stainless steel brake lines? Is brass acceptable? steel?

Re: Brake Line Fittings
 

I bought an Inline Tube kit for my 1970. The instructions say to reuse the original brass junction blocks and fittings if they are serviceable. Most often they clean up with a wire brush.

Re: Brake Line Fittings
 

Just a FYI, you better have a top notch flaring tool as SS is a tough cookie to double fare.

Re: Brake Line Fittings
 

Times two on the stainless lines are tough to flare and not leak. I have the Eastwood turret style flare tool and it works OK on SS.
If you haven't purchased SS brake line yet I would suggest Ni-copp brake line. It flares like butter. And easy to bend. I buy it in bulk at Oreilly's.
If go with SS and have trouble sealing they make little copper flare washers that go in the fittings and help seal to the SS flare.

Re: Brake Line Fittings
 

I use stainless fittings with stainless line. You can get the ss fittings pretty cheap. I think with brass fittings, you are not going to be able to tighten the line tight enough.

BTW...if you have not bought your line, I bought some off Amazon once and Summit another time. The Summit SS line was a breeze to flare and bend correctly, although I do have a turret style flaring tool. The line I bought from Amazon was an absolute nightmare. It was hard and I had to heat the line to get it to flare correctly. I have SS line on both my car and my truck. It is a PITA sometimes, but well worth it.

Re: Brake Line Fittings
 

To help with the hardness and allow the connections to just be snug and not over tight, you can use copper flare gaskets. I had regular steel lines which is softer so I didn't have leaks. A friend bought stainless steel and he was frustrated by how badly every connection leaked, and I gave him the copper flare gasket idea and that solved it. I use them on the steel fuel line.
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