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Old 05-01-2014, 02:09 PM   #1
Premium72
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Lightbulb Will a Later model (72 ish) Master Cylinder fit 64??

im having to redo all the brake lines on Ol'Blue. They are all beyond shot out. completely rusted thru in some parts. I feel like the master that i had in my 72 would fit. Has anyone does this?.

i would be going from a single to double port.

Decent prices on these. Might as well upgrade as i replace a little bit.

Thoughts?? Has anyone done this??

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Old 05-01-2014, 03:01 PM   #2
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

I don't know about fit, but the master you have a pic of is a disc/drum master and won't work correctly on a truck with drum brakes all around, you need a drum/drum mater where the two chambers are the same size. It has the correct residual pressure valves needed for drum brakes.
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Old 05-01-2014, 03:15 PM   #3
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

If you still have drums all around, you could use a '67-'70 MC as they were still drum brakes but had the dual reservoir.
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Old 05-01-2014, 03:46 PM   #4
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

Quote:
Originally Posted by chevy_mike View Post
If you still have drums all around, you could use a '67-'70 MC as they were still drum brakes but had the dual reservoir.
jackpot.. thanks!

i assumed the one form 72 wouldnt work because of the discs, but i had a feeling there was some knowledge out there to point me in the rite direction.

thanks fellas.
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Old 05-01-2014, 03:49 PM   #5
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Re: Will a Later model (72 ish) Master Cylinder fit 64??



looks about rite...
thoughts?
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Old 05-01-2014, 05:35 PM   #6
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

brake booster and MC mounted in engine bay

NOTE : any photos of the engine bay of my truck on my site there, has that same setup....

-W
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Old 05-01-2014, 07:00 PM   #7
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

I've done what your gonna do. Made my 4 wheel drum setup work well. The truck will lay rubber better with the brakes than the motor. I used a new '69 m.c. and got the metal lines from the junk yard.
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Old 05-02-2014, 12:22 AM   #8
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

Yep, I always recommend the '67-'70 master for drum/drum brakes whether manual or power.
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Old 05-02-2014, 12:25 AM   #9
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

GREAT! thanks everyone, no power brakes on this things. Keeping it all crusty, dusty "the way it was" with a just a little touch of safety here an there ;-) thanks again.
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Old 05-04-2014, 10:57 AM   #10
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Re: Will a Later model (72 ish) Master Cylinder fit 64??

did it on mine, got it at o'reillys. works great
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