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Old 03-24-2010, 11:30 AM   #1
mikewarme
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69 gmc 3/4 ton brake conversion

Here is what I have. A 69 Gmc 3/4 ton camper special with a 396.
I have installed 71/72 Chevy truck steering knuckles and ball joints, rotors and calipers. I bought a new booster/master cylinder set-up with proportioning valve. Does anyone know of a brake line conversion set FOR the 3/4 ton 69 year? Or can someone explain how its piped diffrently than the current drum set-up. I understand that the front left and front right go seperatley to the proportioning valve. Is this correct? I have called every place that sells the kits and knowbody can help me. How pathetic to sell a kit and not have someone that knows details. I am doing a very clean rebuild and do not want to Mickey Mouse it.

Thanks for the help Guys/Gals
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Old 03-24-2010, 01:03 PM   #2
mikewarme
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Re: 69 gmc 3/4 ton brake conversion

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Old 03-24-2010, 02:37 PM   #3
Mike C
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Re: 69 gmc 3/4 ton brake conversion

When I converted my 70 GMC I ordered a 71-72 new steel brake line kit. I then went down to my neighbors who had a 71 C10 and looked at how the lines routed. I cut the "tabs" off the crossmember where the drum brake lines attached and re-welded them to align with the disc brake lines. (This was 10 years ago, so if I have it backwards, that's why!) I think the drum lines were behind the crossmember and the disc lines in front. This pretty much gave a factory look and routing of the lines and worked great. If I was going to convert another one, I would do the same thing.

Note: On my conversion, I actually removed the line mount tabs from the donor truck just in case I ever wanted to restore my C2500, but in the end why would you ever go back to drums, restoration or not?
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Old 03-24-2010, 03:20 PM   #4
mikewarme
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Re: 69 gmc 3/4 ton brake conversion

Thats was what I was thinking, Just trying to avoid the tab Modification.
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