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 > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-04-2021, 05:45 PM   #1
lkt1954
Junior Member
 
Join Date: Dec 2007
Location: Dumas, Texas
Posts: 74
Rear Brake Line Help

I just got my rear cross over lines for my 69 C10 and I'm confused.
With the rear brake hoses on the calipers, the hard lines are way too long.
Are there different hoses and/or hard lines when you do a rear disc brake conversion?
Attached Images
  
lkt1954 is offline   Reply With Quote
Old 12-04-2021, 06:37 PM   #2
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 20,600
Re: Rear Brake Line Help

Quote:
Originally Posted by lkt1954 View Post
I just got my rear cross over lines for my 69 C10 and I'm confused.
With the rear brake hoses on the calipers, the hard lines are way too long.
Are there different hoses and/or hard lines when you do a rear disc brake conversion?
Yes. The hard lines after the 'T' split are different on drum vs. disc brake equipped vehicles. You probably want to search for new rear 'disc brake' hardlines (or make your own).
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote
Old 12-04-2021, 07:30 PM   #3
lkt1954
Junior Member
 
Join Date: Dec 2007
Location: Dumas, Texas
Posts: 74
Re: Rear Brake Line Help

What confuses me is I ordered these hard lines from inline tube and told them it was a rear disc brake conversion and yet I got the normal rear hard lines.
The right hoses almost would reach the tee.
Thanks
lkt1954 is offline   Reply With Quote
Old 12-05-2021, 10:50 AM   #4
lkt1954
Junior Member
 
Join Date: Dec 2007
Location: Dumas, Texas
Posts: 74
Re: Rear Brake Line Help

One thought to help crossed my mind.
Currently the calipers are mounted with the hose down.
On the front calipers the bleed valve faces up- rear currently facing down.
Is this part of the issue?
lkt1954 is offline   Reply With Quote
Old 12-05-2021, 02:41 PM   #5
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 20,600
Re: Rear Brake Line Help

Quote:
Originally Posted by lkt1954 View Post
One thought to help crossed my mind.
Currently the calipers are mounted with the hose down.
On the front calipers the bleed valve faces up- rear currently facing down.
Is this part of the issue?
Yes. Bleeders should be @ the top.
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote
Old 12-06-2021, 09:59 AM   #6
lkt1954
Junior Member
 
Join Date: Dec 2007
Location: Dumas, Texas
Posts: 74
Re: Rear Brake Line Help

All bleeders are on top.
Does anyone make a rear disc brake conversion lines?
What about shorter brake hoses?

I prefer not to have to make my own lines.

Thanks
lkt1954 is offline   Reply With Quote
Old 12-06-2021, 10:45 AM   #7
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 20,600
Re: Rear Brake Line Help

Quote:
Originally Posted by lkt1954 View Post
All bleeders are on top.
Does anyone make a rear disc brake conversion lines?
What about shorter brake hoses?

I prefer not to have to make my own lines.

Thanks
I don't know of aftermarket disc brake rear hard lines being sold individually. I would guess they're part of a larger kit only but I've also never searched online specifically for them either. Whatever vehicle set-up the calipers & backing plates are sourced from would be where I started looking.

You would need to post up some more detailed images on what you're working with to determine if shorter hoses might help from an outsiders perspective.
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote
Old 12-06-2021, 02:17 PM   #8
lkt1954
Junior Member
 
Join Date: Dec 2007
Location: Dumas, Texas
Posts: 74
Re: Rear Brake Line Help

Here are some more pictures with all lines laid in place.
The hard lines are run as if they were connecting to drum brakes.

The flex hose on the right is 3" short of the tee block and the left flex hose is about 24" short of the tee.

I see a few options:
1) Use braided flex hose in place of the hard lines.
2) Find pre made shorter lines and bend to fit.
3) Shorten the lines I currently have and hope I get good flares.

Any other thoughts??
Attached Images
    
lkt1954 is offline   Reply With Quote
Old 12-06-2021, 02:32 PM   #9
cwcarpenter98
Senior Member


 
cwcarpenter98's Avatar
 
Join Date: Jan 2018
Location: Hickory Flat, GA and Milledgeville, GA
Posts: 2,744
Re: Rear Brake Line Help

I shortened a couple lines on my truck. It wasn't too hard to get a good flare, even with using the tools rented from your local parts store
__________________
Christian Carpenter

1963 C10 - Frankentruck 283, 3 speed with overdrive
Overdrive wiring here
1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
cwcarpenter98 is offline   Reply With Quote
Old 12-06-2021, 02:49 PM   #10
SCOTI
Registered User
 
SCOTI's Avatar
 
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 20,600
Re: Rear Brake Line Help

Easiest option I see is shortening the existing lines to terminate into a tab on the rear end housing @ each side (similar to how the fronts are terminated & done).

As far as flaring tubing, doing a flare on a straight length of mild steel brake/fuel tubing is fairly strait-forward.
If you don't want to go that route, ordering in flex lines the required length would be the next option.
__________________
67SWB-B.B.RetroRod
64SWB-Recycle
89CCDually-Driver/Tow Truck
99CCSWB Driver
All Fleetsides
@rattlecankustoms in IG

Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
SCOTI is offline   Reply With Quote
Old Yesterday, 08:33 AM   #11
Joyridin
Registered User
 
Join Date: Sep 2020
Location: Cleveland, Ohio
Posts: 37
Re: Rear Brake Line Help

If it were me, I would ditch those 2 foot long hoses and get some short SS or even rubber hoses. Run your steel lines close to the wheel and put your 3 way block wherever is convenient. Having those rubber lines dangle all over the place looks like an accident waiting to happen.
Joyridin is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 09:03 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Copyright 1997-2020 67-72chevytrucks.com