The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-10-2018, 03:47 PM   #1
angelobackwards
Registered User
 
Join Date: Apr 2015
Location: Silver City, NM
Posts: 60
Brake line routing - 77c10

Hey guys I’m 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 “T” or master. Looks like the fitting from the flex hose is about 1/2”male, I haven’t found anything locally for an elbow from the 1/2” to the 1/4 (female to female/my hard lines are 1/4”) and don’t wanna run a bunch of fittings if possible. All Thanks for any info.
Attached Images
   
angelobackwards is offline   Reply With Quote
Old 05-10-2018, 04:59 PM   #2
ray_mcavoy
Registered User
 
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,361
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.
ray_mcavoy is offline   Reply With Quote
Old 05-10-2018, 05:03 PM   #3
angelobackwards
Registered User
 
Join Date: Apr 2015
Location: Silver City, NM
Posts: 60
Re: Brake line routing - 77c10

Quote:
Originally Posted by ray_mcavoy View Post
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 1/4” line and the fitting off the flex is 3/16 so I’m gonna try and find an elbow or adapter to run my 1/4”. This should take care of the problem. Now just need to find a jam nut. Our chassis didn’t have any lines so I’ll be making a trip to the store again.
angelobackwards is offline   Reply With Quote
Reply

Bookmarks

Tags
brakes, c10, chevy, gmc, squarebody


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:29 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com