Re: Proportioning Vavle for Disc Brake Conversion on a 1970 GMC C-20
I have a factory 1970 unit kicking around from my drum brake C2500 if you get desperate. It's the nonadjustable unit but 1,000,000 factory trucks can't be wrong!
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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