Power Brake Booster

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Power Brake Booster

Post by LS_Quest on Wed Jul 02, 2014 5:40 pm

We have in our 73 El Camino, the original power brake booster. As you all know, it is huge; 10.75".

Is there a direct replacement with a smaller diameter diaphragm?

We really don't need the room, but since we will be replacing it soon, figured might as well replace it with a smaller one if possible.
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Re: Power Brake Booster

Post by dynchel on Wed Jul 02, 2014 5:50 pm

I've been wanting to try putting a later plastic and aluminum master on mine.  I've determined that a '80 elcamino will bolt in place, and the lines are the same.  As for weather it will bolt on, bleed out, and work I don't know.
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Re: Power Brake Booster

Post by LS_Quest on Wed Jul 02, 2014 5:57 pm

So the bolt pattern to the firewall is the same? That's good. What about the pushrod style and length?
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Re: Power Brake Booster

Post by LS_Quest on Wed Jul 02, 2014 5:58 pm

^^^ to the pedal.
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Re: Power Brake Booster

Post by dynchel on Wed Jul 02, 2014 6:01 pm

It will bolt up and the lines will screw in that's what I know.  On Napa prolink it gives vague specs (threads for the lines, bolt pattern) but its intended for stock replacement, not cross referencing for custom applications.


Last edited by dynchel on Wed Jul 02, 2014 10:14 pm; edited 1 time in total (Reason for editing : clarification)
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Re: Power Brake Booster

Post by bracketchev1221 on Thu Jul 03, 2014 6:06 pm

Make sure you guys are discussing the same thing. To me it sounds like one is talking booster and the other is talking master cylinder.
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Re: Power Brake Booster

Post by dynchel on Thu Jul 03, 2014 6:25 pm

I think we are understanding each other. (Idk about the booster question, mine has manual brakes) just saying my thoughts.
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Re: Power Brake Booster

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