Proflow factory replacement concours correct proportioning valve including brake fail switch, suits a number of Australian & US vehicles. Depending on what you are using this valve on it was plumbed differently. Please see attached diagrams for both Australian and US plumbing. Factory Replacement for Ford XWGTHO, XYGTHO, XAGT, XBGT -Suits both Disc/Drum & Disc/Disc 67-72 Mustang, Cougar and more

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