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#1 |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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more brake line issues
I purchased a brake line kit, DBBL70O from Brothers, presumably InlineTube, for my 1970 that I did the CPP disc conversion on, and Brothers says their kit will bolt right up . It doesnt. I'm having issues with the parts themselves in the kit and where they connect to the discs.
My lines to the disc soft line are too small, as shown, and the coupler for the rear lines is too small, which makes no sense since its in their own kit. As shown. What do I do? Im going to call Brothers but I doubt theyll be able to help me much. Do I get different soft lines and a different coupling piece?
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#2 |
Junior Member
![]() Join Date: Jul 2014
Location: Huntsville, AL
Posts: 75
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Re: more brake line issues
Are the conversion kits like the 71-72 OEM? If so, the hose fittings to the hard lines are different sizes, with the smaller one going on the passenger side, 3/8 maybe. The fitting on the driver side hose is larger, like 7/16. I know because mine is apart right now. No ideas on the connector for the rear line.
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#3 | |
Senior Member
![]() Join Date: Mar 2014
Location: Toano, VA
Posts: 874
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Re: more brake line issues
Quote:
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"Sometimes I do serve as a good bad example. Glad to be of service." My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809 |
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#4 |
Registered User
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
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Re: more brake line issues
Brake line unions are cheap & available at all parts stores, you can also get size adapters for your line to hose. IMO I'd buy the proper size line & bend it up to match the hose.
If it makes you feel better, I got a kit from Inline for a stock 71 GMC K25 & had to make 1/2 the lines myself due to fitment issues. Contacted Inline, they were of no help whatsoever. |
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#5 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,939
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Re: more brake line issues
Is that for a front disc conversion? Because that hard to soft union is at the rear of the crossmember like on a drum brake setup. The hard to soft union on a 71-72 front disc rig has the union on the front of the crossmember.
When I swapped all my 1972 stuff to a 1969 frame I already had the brake lines (kit from inline tube) already ran for my stock disc brake setup on a 1972 frame. So I had to cut the soft brake line tabs off of the front of my 1972 crossmember and weld them onto the 1969 crossmember. Not sure if that is your issue or not. But here is a post from my build thread about it: http://www.67-72chevytrucks.com/vboa...&postcount=157 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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Last edited by GASoline71; 04-27-2017 at 11:50 AM. |
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#6 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,114
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Re: more brake line issues
Personally I would be shipping them back. I see no good reason let a vendor off the hook for something as simple as brake line fitting sizes. The only way vendors stop selling products that don't work is if we stop letting them. OK. I'm getting off my soap box now.
On your rear hose what style of Tee do you have? My understanding is that the 71-72's have a different style than the earlier ones. First photo is of a later style hose which uses 1/4" fittings at the axle Tee. The second photo is of the hose mounting plate on the later axle. (It also shows my PO's use of an early hose with a late axle) The earlier hose Tee has 3/16" fittings and no bolt hole. This information comes from me replacing the lines on my 67 Burban. The PO had swapped a five lug axle under it. (3rd photo shows correct hose installed). Both hoses have 1/4" fittings on the frame side. I don't know about what the front hoses on a 70 might look like, but my 67 had 3/16" fittings on the lines with an adapter to 1/4" for the hose. I don't know if it was this way from the factory but it had definitely been that way for a long time when I took it apart to replace the lines. (4th photo). The PO had swapped the front to a five lug disc set up. hope this helps with your issue. I also know the coil spring hoses are longer than leaf spring hoses.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 Last edited by HO455; 04-27-2017 at 02:42 PM. Reason: -4 spelling |
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brake lines, brothers, inlinetube, prebent |
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