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#1 |
Registered User
Join Date: May 2012
Location: Faith,NC
Posts: 1,626
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Brake line routing advice needed!
Could someone please post a pic to show the proper/best way to run the rigid brake line coming from the master cylinder mounted proportioning valve and running to the "T" for the front brake lines? I have a '68 chevy with disk brakes and a brake booster/master cylinder/ proportioning valve combo. The current line is not "installed" but is "routed" between the frame and the headers and it is a very tight fit. Barely any room and extremely close to the headers! I am worried about chafing and overheating. Anyway the line runs down and connects to a "T" which splits off to send a line to both front calipers. Any advice/pics would be greatly appreciated!
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#2 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Brake line routing advice needed!
Not sure what you're looking for but here's a pic someone posted for the prop valve line routing. There are two separate lines for front and rear brakes. Also, there are and have been many different variations of this since previous owners have added and changed master cylinders and features.
You could also do a google search and click on images: 67-72 chevy truck proportional valve lines. Lots of different pics there.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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#3 |
Wide n'Low
![]() Join Date: Jan 2007
Location: La Center, WA
Posts: 1,511
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Re: Brake line routing advice needed!
I've collected some pictures from various threads, and put them into a spreadsheet located on my site here - Frame Plumbing
Might be what your looking for
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Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired |
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#4 | |
Registered User
Join Date: May 2012
Location: Faith,NC
Posts: 1,626
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Re: Brake line routing advice needed!
Quote:
Thanks Twisted78SS! That helps alot. In the 9th pic you posted, it shows the lines running on the outside of the frame whereas mine run on the inside next to the header. This is the area I was trying to see. |
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#5 |
Registered User
Join Date: May 2012
Location: Faith,NC
Posts: 1,626
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Re: Brake line routing advice needed!
Thanks 68GMSEE, but I was looking for a pic that shows how the line passes down around the frame and engine area. My line runs between the frame and my headers on the driver side and it is a really tight fit in that area. Seems like there would be a better way to run it.
Last edited by Steve Cole; 04-23-2013 at 11:58 AM. Reason: typo |
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#6 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Brake line routing advice needed!
From what I understand, some ran inside the frame, and some ran outside the frame. Not sure what made the difference for the factory to run them in or out. Maybe front drum or disc brakes?
I have a 1972 GMC with front discs and the line runs outside the frame. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#7 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,963
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Re: Brake line routing advice needed!
Both my 71 and 72 c20s run outside the frame.
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#8 |
Registered User
Join Date: May 2012
Location: Faith,NC
Posts: 1,626
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Re: Brake line routing advice needed!
My truck had drum brakes originally, now aftermarket disks. Also, these are stainless steel aftermarket lines but this particular line is bent so wrong there is no way it could ever line up the way it is currently routed but I don't think it would line up if it were routed to the outside of the frame either. This line I speak of comes off the right side of the valve, (sitting in the cab looking forward)
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#9 |
Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Re: Brake line routing advice needed!
Subscribing
Posted via Mobile Device
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1969 Chevy c20(Miss Hackjob) |
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#10 |
Senior Member
![]() Join Date: Oct 2009
Location: Godley, TX
Posts: 17,963
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Re: Brake line routing advice needed!
keep in mind, this is for a 71 C20 with disks - but here is the line routing. Pretty certain the line routing is the same for a C10, however, the master cylinder in a disk brake C20 has the REAR drum brake reservoir as the FORWARD reservoir and the FRONT disk brake reservoir as the REARWARD reservoir. But after the prop valve, all should be the same. 1st pic is reference for a C20-specific disk/drum factory setup - shows how prop valve is arranged and the fact that the front reservoir goes to the rear port of the prop valve (again - this is C20 only) - BUT, the routing after the prop valve should be the same for C10 or C20.
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#11 |
Registered User
Join Date: May 2012
Location: Faith,NC
Posts: 1,626
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Re: Brake line routing advice needed!
Thanks for the pics Jocko!
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