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Old 04-04-2013, 11:16 PM   #4
ulakovic22
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Join Date: Aug 2008
Location: Lantana, TX
Posts: 419
Re: '69 Manual Master Cylinder (Disc/Drum) Bore Size

Based on what I have researched, these trucks only came with 1 1/8 bore for manual and power disk/drum. Most people, myself included use a Corvette master, which is a 1" bore. POL has an aluminum Corvette MC and the prop valve can be mounted under the MC or to the side like factory.
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