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proportioning valve ?

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Old Jun 28, 2007 | 09:45 AM
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proportioning valve ?

Does anyone know if the proportioning valve for 1979 ford truck is the same if it has power brakes or non power disck brakes?
I am going to do a conversion on 1968 and i'm not sure if i am going with power or non power.
Also is there a difference in master cylinders?

Thanks
 
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Old Jun 30, 2007 | 12:00 PM
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385seriesHemi
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Run up to the parts store and find out if the portioning valve is the same for each application. they could have the same part number or not, its a 50/50 chance
 
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Old Jul 9, 2007 | 05:36 AM
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Thanks for the advice that is what i will do.
 
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Old Jul 9, 2007 | 06:19 AM
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Originally Posted by classicranger
Does anyone know if the proportioning valve for 1979 ford truck is the same if it has power brakes or non power disck brakes?
I am going to do a conversion on 1968 and i'm not sure if i am going with power or non power.
Also is there a difference in master cylinders? Thanks
Please list the exact model and series you are working on, it makes answering questions easier.

1975/79 F100/150 2 or 4 WD with disc brakes used only one valve:

D5TZ-2B257-B .. Disc Brake Proportioning Valve.

Parts catalog makes no reference concerning power brakes, so the valve will work either way.
 

Last edited by NumberDummy; Jul 9, 2007 at 06:23 AM.
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Old Jul 9, 2007 | 12:05 PM
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I'm not sure about your question. But most drum brake fronts had some sort of residual psi system for the cylinders, so you would want to eliminate that feature if the system had it and you went to front disc, power or non power.
 

Last edited by mark a.; Jul 9, 2007 at 12:12 PM.
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Old Jul 9, 2007 | 04:16 PM
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Thanks i will do better when asking questions.
More info.

Mark A
Thanks, i will be starting from scratch so i will plumb it as a 79 F150 parts.
 
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Old Nov 29, 2008 | 06:49 AM
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Thanks Mark for the question and Bill for the answer. This really helped me!
 
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Old Nov 30, 2008 | 07:38 AM
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> will plumb it as a 79 F150 parts

Install a mstr/booster combo for a 1979 F-350 with disc brakes for $120 from Advance Auto. You will get a much bigger mstr/booster and increased brake performance. It will bolt right in.
 
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Old Nov 30, 2008 | 12:50 PM
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So does that mean that the '79 F-350 mstr/booster will bolt onto a '76 F-100?
 
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