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1 Piece Proportioning Valve

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Reproduction '73-'74 A-body proportioning valve simply bolts in place of the original drum brake distribution block when performing a FRONT disc brake conversion on '67-'76 A-bodies, '67-'72 B-bodies and '70-'72 E-bodies.  Can also be used to convert '66 and earlier A and B-bodies to a dual circuit brake system when installing a front disc brake conversion:

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