Rear Brake Line Fittings

Hello All,

I'm about to embark on replacing all of my rear hard brake lines from the front union to the rear drums with the exception of one line (LSP to rear-diff-mounted line). I'm replacing the two long ones that run from the front unions to the LSP valve and the two lines that run from the rear-diff-mounted T fitting to the rear drums.

Anyways, I am making my own lines from rolled nicopp and am confused on if the fittings I have will work properly as they are not exactly the same as what I have encountered. I made sure to get 3/16" M10x1.0 fittings but have already run into two different fittings (both different from each-other and my replacement fittings). In the picture you can see that all three fittings have the same working depth but the replacement has threads that go all the way to the end, whereas the (probable OEM?) fittings have a smooth section at the end. The second fitting came off of the T-fitting mounted on the diff and the last came from the rear drum.

I saw on another website that someone asked the same question and couldn't get an answer. They ultimately tried it and said it works, but I am skeptical. Hard to find info about this for some reason.

 

The two that came off of there are what appear to be JIC fittings. They are used in high pressure fluid transfer and they DO matter. Those beveled ends mate up to a corresponding female fitting. Check this out:https://youtu.be/H4haFh64Y9Y

 

I could be wrong, but mine do not have an inward flare like those in the video. The second fitting (in my picture) does appear to be flared out, rather than in, but I'm assuming that its deformed from age, could be wrong to assume that as well.

 

I believe Toyota sells the correct fitting as 96311-11000. The brake lines use a double inverted flare and the non-threaded portion helps everything seal properly.