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Brake master cylinder 1970 Cutlass

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Old April 11th, 2024, 06:12 PM
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Brake master cylinder 1970 Cutlass
I want to make sure I get the correct one. Power drums front/rear. Is the Duralast NM1489 correct for my application? Looks right but the description makes me wonder. Is the correct OE number 18030255?

I am getting close to full reassembly and firing it up.
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Old April 12th, 2024, 06:24 AM
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5471817 is the original number. If you don't care about being optically correct (as in, no bleeder screws) then yes, that Duralast will work fine. OEM was a 1" bore.



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Old April 12th, 2024, 06:26 AM
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Thanks a bunch Joe, I am going ahead and ordering it since I really am making this a restomod and not a factory correct set up.
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