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Old 01-21-2013, 02:39 PM   #1
WTexChevy
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Join Date: May 2011
Location: Lubbock, TX
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63 Master Cyl. Upgrade Question

I have the "bolt top" single reservoir master cyl. and would like to upgrade to a dual res. The bolt pattern on on mine is staggered a bit. (2oclock and 7oclock) there are however 2 bolts on the firewall that look like 9&3oclock "under" the factory m-cyl. Can I bolt a conv. dual res. to these bolts?

thanks!
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Old 01-22-2013, 02:01 AM   #2
Captainfab
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Re: 63 Master Cyl. Upgrade Question

Yes you can bolt just about any GM dual reservior master cylinder to your firewall using those 2 bolts at 3 & 9 O'clock.
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Old 01-22-2013, 09:29 AM   #3
skysoldier173rd
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Re: 63 Master Cyl. Upgrade Question

Used one of the good captains adapter plates and got a 67 master cyl from autozone and instant good brakes. Really does fine without power anything. This is a dual master cyl and you need to seperate the back and front, makes the truck much safer. Just make sure the higher pressure side of the MC is on the front brakes.
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Old 01-22-2013, 01:03 PM   #4
WTexChevy
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Re: 63 Master Cyl. Upgrade Question

Thanks guys! Great info!
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