Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

master cylinder swap

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Old Jun 13, 2008 | 07:07 PM
  #1  
Ostang04's Avatar
Ostang04
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Joined: Apr 2006
Posts: 128
From: Marietta, GA
Default master cylinder swap

I recently got a '65 coupe . My plan is to work on it when i'm home from school this summer, even though it is only 3 weeks. I was wondering if anyone has swaped out the single res MC for a '67 dual res MC. It still has all four drum brakes. My question is it a straight swap or am I going to have to put new fuel lines it as well? thanks.

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Old Jun 13, 2008 | 11:24 PM
  #2  
cfd2bc's Avatar
cfd2bc
2nd Gear Member
 
Joined: Apr 2008
Posts: 259
From: Kansas
Default RE: master cylinder swap

I have a 66 and wanted to do the same thing. I have a power brake though. The new MC would not fit in between the vacum booster and the shock tower. I called the place I bought it from and they said that happens.

Jeff
Old Jun 14, 2008 | 12:11 AM
  #3  
rmodel65's Avatar
rmodel65
Yukon Cornelius
 
Joined: Oct 2005
Posts: 11,812
From: deep in the heart of dixie GEORGIA
Default RE: master cylinder swap

forget the swap m/c go ahead and do it right http://www.discbrakeswap.com/
Old Jun 14, 2008 | 10:35 AM
  #4  
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Ostang04
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Joined: Apr 2006
Posts: 128
From: Marietta, GA
Default RE: master cylinder swap

I would like to do disc brakes one day but with being in school I don't have 500+ to drop on brakes. i was thinking since I could pick up a rebuild '67 dual res manual brake MC for $26 dollars and just swap it out for right now it would make me feel a whole lot safer driving the car. Oneleak in any part of the system. good by brakes!
Old Jun 14, 2008 | 10:42 AM
  #5  
1slow67's Avatar
1slow67
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Joined: May 2007
Posts: 8,158
From: AL
Default RE: master cylinder swap

I say do it if you think you can.
Old Jun 14, 2008 | 10:52 AM
  #6  
Stepman's Avatar
Stepman
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Joined: Mar 2004
Posts: 1,090
From: Az
Default RE: master cylinder swap

You do't need disc's to "do it right". I have no problem stopping with drums all around. Go for the swap but you may have to do some plumbing to make it work right as you have to seperate the front/back. If you need new lines, make sure to use double flair brake line.
Old Jun 14, 2008 | 02:04 PM
  #7  
JamesW's Avatar
JamesW
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Joined: Sep 2006
Posts: 3,302
From: Northernish Eastish Central Texas
Default RE: master cylinder swap

Look on my website under granada brakes.It had some information on installing the M/C. With 4 drums, you're fine in using a standard 67 drum/drum M/C. You'll need to redo the hard brake lines such that a line from the front bowl goes to the single line to the rear (attach with a coupling), and a line from the rear bowl goes to a T that picks up your front two hard lines. All the supplies you need are at Autozone.

M/C (buy a new, not a rebuilt)
Brass inverted flare T fitting
Brass Inverted flare coupling
couple of sticks of 3/16" steel brake line (verify that size)
and an inverted flare bending tool. You canborrow that from AZ for a deposit only.


Don't forget to bench bleed the M/C before installing.

and if you really wanna be cheap, you can skip the new T and just keep your current 4 port distribution block and buy an inverted flare screw in plug to cap the extra port and use it.
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