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Old 03-08-2015, 11:40 AM   #1
Dan87GT
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Join Date: Sep 2014
Location: Houston, Texas
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Help with Power Brakes '57 3100

Hello....I am re-doing the brakes on my '57...it has been upgraded with a later style power brake booster, etc....I have 2 questions I was hoping someone could help me with....1) Any idea what this booster is off of?...It is marked Bendix 11869 but I cannot find a reference online....the truck has a custom brake pedal asm and I was was hoping for a direct replacement booster....bolt hole spacing is 3 1/4(width) and 3 1/2(height....2) When looking at replacement master cyl/brake booster I see that most have the proportioning valve mounted to the brake asm...mine is mounted low on my frame..does it matter?

thank you!!









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Old 03-08-2015, 12:14 PM   #2
yossarian19
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Re: Help with Power Brakes '57 3100

I haven't a clue what what booster would have come from. Google and Rockauto.com are both as clueless as I am.
This might be a good time to upgrade to hydroboost
I don't think there is any problem with having your prop valve mounted low. Certainly a lot of us have them mounted down by the frame rail as that's where a lot of us have the MC.
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1957 Chevy 3200, big rear window & 6 lug.
Front disc, power steering, Vortec 4.8 / 4L60E swap, hydro boost brakes & patina.
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Old 03-08-2015, 02:06 PM   #3
1project2many
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Re: Help with Power Brakes '57 3100

Four bolt holes on the master makes it look like Mopar. Pictures on Ebay from E body, Cuda/Challenger, look similar.





http://www.ebay.com/itm/Rebuilt-Bend...0d369d&vxp=mtr

This should help narrow the field some. Are there any number on the master cylinder? What else is on the booster?

Last edited by 1project2many; 03-08-2015 at 02:18 PM.
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Old 03-08-2015, 07:31 PM   #4
Dan87GT
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Re: Help with Power Brakes '57 3100

Thanks....never thought of Mopar....but my front suspension is from an Aspen....looks like the brake booster asm was used as well.....

thanks for the help.....Dan
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Old 03-08-2015, 09:55 PM   #5
1project2many
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Re: Help with Power Brakes '57 3100

Hey... glad to help. Nice that you know the application.
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Old 03-19-2015, 01:46 PM   #6
Dan87GT
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Re: Help with Power Brakes '57 3100

Hello.....so....I will be replace my master cylinder/booster this weekend....I will also be replacing the brake lines & proportioning valve as well....you can see from the pictures it is a mess...question....on my master cylinder which portion should I connect the front brakes too?....the most forward position?...i.e. closest to the front?..originally fronts where connected to the rear but I am not sure if this is correct....

thank you...
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Old 03-19-2015, 02:54 PM   #7
57Sedan
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Re: Help with Power Brakes '57 3100

In my experience, you want discs connected to the larger reservoir of the two, and drums connected to the smaller one.
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