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03-23-2018, 12:41 PM | #1 |
Registered User
Join Date: Feb 2013
Location: Longview, Texas
Posts: 173
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Front brake line help PLEASE
So I'm pretty sure I got the wrong brake line kit.... My truck is a 1970 1/2 ton with front disc brakes. The flex lines attach to the mount on the backside of the cross member in front of the shock. The kit I have requires the flex hose to attach to a mount this on the front of the cross member with a short hard line that makes a 180 and comes back to a T fitting. Can someone please tell me what I have done wrong or what I need? I have been fighting with these brake lines for weeks now!!!
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03-23-2018, 01:12 PM | #2 |
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Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Front brake line help PLEASE
You ordered a brake line kit for a 71/72.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
03-23-2018, 01:34 PM | #3 |
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Join Date: Feb 2013
Location: Longview, Texas
Posts: 173
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Re: Front brake line help PLEASE
Thanks for the reply. So the 71/72 front brake flex lines go in front of the cross member and the 67-70 front flex lines go to the rear of the cross member?
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03-23-2018, 01:35 PM | #4 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
You have a truck that someone converted and short cutted the brake lines. The lines for the back of the crossmember go to the drums. 71/72 come across the front for the disks. I can send you pics if you want to see what it should look like with disks. You may have other issues that should be corrected in the braking plumbing.
Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
03-23-2018, 01:42 PM | #5 | |
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Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Front brake line help PLEASE
Quote:
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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03-23-2018, 01:45 PM | #6 | |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
Quote:
Use all the 71/72 lines to include the ones running up to the master cylinder. If you use the 70 lines it can stress the rubber hose running to the caliper. Seen it, corrected it. Also, the prop/combo valve is different between 70/71. I changed mine out. EDIT: Master cylinder as well is different. I also get the new rear line that comes with the front set. It will fit into the brass union that runs down the frame for the rear brakes. You don't have to replace all the rear lines. Just loosen the clamps, let is slide and it will all connect, tighten the clamps back up. Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time Last edited by 71meangreenc10; 03-23-2018 at 01:59 PM. |
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03-23-2018, 02:04 PM | #7 |
Registered User
Join Date: Feb 2013
Location: Longview, Texas
Posts: 173
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Re: Front brake line help PLEASE
Thanks for the info Smitty. If you have some pictures that would be great. These brake lines are about to make me say some four letter words....
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03-23-2018, 02:14 PM | #8 |
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Join Date: Jul 2009
Location: Jonesboro, AR
Posts: 410
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Re: Front brake line help PLEASE
I used 69 chevelle brake hoses. They have the banjo fitting on the caliper end and flared fitting on the other. Not my invention, I found this info in other posts on this site. I did have to do a little grinding to get it to fit into the bracket where it connects to the hard line.
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03-23-2018, 04:29 PM | #9 | |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
Quote:
Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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03-23-2018, 06:25 PM | #10 |
Registered User
Join Date: Feb 2013
Location: Longview, Texas
Posts: 173
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Re: Front brake line help PLEASE
Thank you
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03-23-2018, 08:16 PM | #11 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
As requested.
This is a 70 with a 72 crossmember and all brake lines on the front. If you don't have that setup, you can get the tabs for the brake lines online and weld them on. Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
03-23-2018, 08:17 PM | #12 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
Last one.
Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
03-24-2018, 04:47 PM | #13 |
Registered User
Join Date: Feb 2013
Location: Longview, Texas
Posts: 173
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Re: Front brake line help PLEASE
Thanks for posting the pictures!
Anthony |
03-24-2018, 05:02 PM | #14 |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: Front brake line help PLEASE
You are welcome.
Smitty
__________________
71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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