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-   -   Brake line routing - 77c10 (https://67-72chevytrucks.com/vboard/showthread.php?t=763563)

angelobackwards 05-10-2018 03:47 PM

Brake line routing - 77c10
 
3 Attachment(s)
Hey guys Iím fixing to run front brake lines on my 77 c10 chassis. I just bought new flex lines to the calipers. Looking for pics/info of what ppl have done from the flex line through the frame to their ďTĒ or master. Looks like the fitting from the flex hose is about 1/2Ēmale, I havenít found anything locally for an elbow from the 1/2Ē to the 1/4 (female to female/my hard lines are 1/4Ē) and donít wanna run a bunch of fittings if possible. All Thanks for any info.

ray_mcavoy 05-10-2018 04:59 PM

Re: Brake line routing - 77c10
 
The ends of the flex lines have both external & internal threads.

The external threads are used with a thin jamb nut to secure the flex lines to the frame.

The internal threads should accept the inverted flare nuts on the hard lines. And there should be a cone shaped seat at the bottom of the inner hole that seals against the flared end of the hard line. The factory hard lines usually had a fairly sharp bend close to the end instead of using a separate elbow fitting.

angelobackwards 05-10-2018 05:03 PM

Re: Brake line routing - 77c10
 
Quote:

Originally Posted by ray_mcavoy (Post 8258581)
The ends of the flex lines have both external & internal threads.

The external threads are used with a thin jamb nut to secure the flex lines to the frame.

The internal threads should accept the inverted flare nuts on the hard lines. And there should be a cone shaped seat at the bottom of the inner hole that seals against the flared end of the hard line. The factory hard lines usually had a fairly sharp bend close to the end instead of using a separate elbow fitting.

Right after I posted this I noticed the flex line was threaded! Guess I should have looked first. . I have a bunch of spare 1/4Ē line and the fitting off the flex is 3/16 so Iím gonna try and find an elbow or adapter to run my 1/4Ē. This should take care of the problem. Now just need to find a jam nut. Our chassis didnít have any lines so Iíll be making a trip to the store again.


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