Suspension TECH Including Brakes, Wheels and tires

          
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Old 10-11-2004, 04:11 PM
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What is it and where does it go on a 66 gto.

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Old 10-11-2004, 04:11 PM
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What is it and where does it go on a 66 gto.

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Old 10-11-2004, 08:28 PM
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Dude Im asking almost the exact same thing in my post on this page, however, I can tell you that a proportioning valve is a small gadget that helps you adjust the amount of pressure going to your rear brakes. I have one to put on my 68 Bird because I did a front disc brake conversion. Rear brakes drum brakes require a different amount of pressure than front disc brakes do.

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Old 10-11-2004, 10:31 PM
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Two places. On a bracket that hangs it just below the master cylinder, or down on the frame in the same area of where the clutch linkage would be, mounted on the inside of the frame.

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Old 10-12-2004, 02:04 AM
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Doesn't the car already have on then. The brass hub that all the brake lines connect to. Just under the master cylinder.

PMD...From Long Island too. I live in Islip, where about are you??

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Old 10-12-2004, 05:57 AM
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the early brass hub was just a distribution switch. it had no valves other than the warning switch.

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Old 10-12-2004, 07:56 AM
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66 GTO -
I'm from Centerreach, Long Island. Newhall Drive to be exact. Now live in Orange, CA.

Eeaaay! Fuhgeddaboutit! 8^)

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Old 10-12-2004, 08:00 AM
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Under the topic "brake system question" I posted some pictures of my proportioning valve. The '66 GTO looks the same. Also if you have a copy of Zazarines "Pontiac Restoration Manual", look on pages 212-219. If you don't have a copy, get one at your local book store. It's indispensible if you are restoring a car.

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Old 10-14-2004, 01:57 AM
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So....Then the portioning valve takes the place of the brass block that bolts to the frame under the master cylinder?

If so what year and make of car can I use on my 66??

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Old 10-14-2004, 10:50 AM
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Yes. The prop valve will replace the brass distribution block you have now. Use one from a '69-'72 A-body.

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Old 10-14-2004, 04:49 PM
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Thank you...A-body being a cutlas, monte carlo??

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Old 10-14-2004, 09:02 PM
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A-body:
'64-'72 GTO, Chevelle, Skylark, 442, Monte Carlo and clones.
Again, get the prop valve from a '69-'72.

A/G-body:
'78-'87 LeMans, Cutlass, Malibu and clones.

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462 cid/ 6x-4/ TH400/ 3.36:1/ 28x10.5/ 3880#/ 12.35 @ 109.36/ 1.69 60 ft/ 4 wheel disc brakes/ 15 mpg
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