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Master cyl replacement

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Old 02-21-2019, 08:04 PM
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Master cyl replacement
What is a good replacement master cylinder for my single cup on my 61 F100. I’m not looking to put power brakes on it just get rid of the original.
 
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  #2  
Old 02-21-2019, 08:16 PM
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Go with a NEW unit not rebuilt that's my advice. The rebuilt units are real hit and miss. Got mine off Ebay for 50.00.
 
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Old 02-22-2019, 01:25 AM
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Are you wanting a replacement, or an upgrade to dual??
Upgrade should be simply getting a '67 F-100 master. In any case, match the diameter and you'll be fine.

Cosmo
 
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Old 02-22-2019, 06:28 AM
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Upgrade to a dual. I saw dual master cylinder and brake line combo somewhere but can’t seem to find it again.
 
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Old 02-22-2019, 09:11 AM
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It has to be the 4 wheel drum type dual master cylinder, maybe you know this already but it's worth pointing out.
 
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Old 02-22-2019, 09:37 AM
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No I didn’t know there were different ones. Did 67 F100s offer anything other than drum brakes?
 
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Old 02-22-2019, 10:37 AM
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As a matter of fact I think it is the '67 or '68 is the one to use, or for a Mustang with 4 way drums. Something like that. It's also important that the pushrod is the right length and the master cylinder is not "short stroked", or a dual circuit master cylinder will not work as advertised in the event of a leak in the system. Have to test this after installation to be certain.
 
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Old 02-22-2019, 11:46 AM
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match the diameter?
Originally Posted by cosmofennema
Are you wanting a replacement, or an upgrade to dual??
Upgrade should be simply getting a '67 F-100 master. In any case, match the diameter and you'll be fine.

Cosmo
This is the next big project on my '64: upgrade from a single pot mc to a dual and replace the lines...keeping it drum/drum.

I'm subbed, and had a question, which diameter are you talking about?

Warning: I'm a rookie mechanic, but willing to learn.
thanks,

rtc
 
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Old 02-23-2019, 12:09 AM
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Diameter of the bore of the master cylinder.

Cosmo
 
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Old 02-23-2019, 01:09 AM
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The offerings for master cylinders that are plug n play are plenty. Here is a cast aluminum that goes for about $50 and has a port for the brake switch.


 
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Old 02-23-2019, 11:15 AM
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Where did that one come from?
 
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Old 02-23-2019, 01:27 PM
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My 2 cents is buy a master cylinder at a local parts house. The quality of the replacement parts for anything as old as these trucks is not what it once was. That way when it goes bad maybe even right out of the box. You can just return it and they will happily give you a new one. My master developed a seep at about a year old. Took it back to O'Reilly's and they gave me a new one, no hassle. Try that with E-bay.
 
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Old 02-23-2019, 01:36 PM
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Originally Posted by Crop Duster
My 2 cents is buy a master cylinder at a local parts house. The quality of the replacement parts for anything as old as these trucks is not what it once was. That way when it goes bad maybe even right out of the box. You can just return it and they will happily give you a new one. My master developed a seep at about a year old. Took it back to O'Reilly's and they gave me a new one, no hassle. Try that with E-bay.

I agree. It’s all made in Japan. I have pretty good luck with my local NAPA parts store.
 
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