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Part fits the following years:1962196319641965196619671968196919701971197219731974197519761977


1959-1977 Grand Prix Proportioning Valve, Adjustable Adjustable Knob Style, Single in/Out

Low Stock Alert!
Only a few left in stock.
Available for immediate delivery.
SAVE: 10% Retail: $50.95

OPGI Price $45.99

Point Coins Earn 45 points more info


Adjustable design allows you to fine tune your brake system

A must-have component

These premium proportioning valves from Wilwood allow you to precisely adjust your vehicle’s brake pressure and are a must have for any disc brake conversion. Each valve features a forged-billet body and a fine-thread adjustment knob for pinpoint accuracy when tuning. Two valves are available to suit your needs. The standard valve features an adjustment knob and a single inlet and outlet. The combination valve features and adjustment knob, high-pressure brake light switch and a total of three inlets and three outlets while maintaining full isolation between front and rear circuits.

Part #: CH29048

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California Prop 65 Icon WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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