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Old 12-17-2021, 11:06 PM   #3
Mike C
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Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,712
Re: Power to Manual brakes on 72 c-10

The combination valve should be the same whether power or manual. Remove the power booster and get a manual brake pushrod and manual brake master cylinder. The manual MC has a deeper hole in the back to keep the pushrod from falling out, aftermarket ones sometimes come with a spacer to put in the back or have one that can be removed.
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