Description
Wilwood's GM style proportioning valve is a direct replacement for 1978 and newer General Motors vehicles equipped with front disc / rear drum brakes. Manufactured from high quality aluminum and coated with a durable black anodized finish. Line connections for the valve, if mounted in the OE location, Will allow the original lines to connect directly to the valve. If mounted in a non-OE location, fluid lines may have to be modified. This also does allow usage in other non-GM vehicles. This proportioning valve offers: 63% pressure reduction (rear) after 350 PSI knee point. A 30 PSI delay rear-to-front circuit and circuit failure sender activation at 50 ± 10 PSI. A Recommended maximum operating pressure: 2000 PSI. Non-adjustable front-to-rear proportioning (knee point, rate, etc.) and Anti-dive or metering delay valve: Enables rear brake pressure to build momentarily before front brake pressure builds.
Our Approach to Stock & Shipping
Most orders ship within 1–3 days, either from our warehouse or directly from the manufacturer. We validate inventory with our vendors to provide the most accurate information possible, though occasional delays can happen.
This partner-first approach helps keep costs down and shipping times fast, with full visibility from order to delivery. Have questions? Email sales@jdmkonbini.com and we’ll help right away.
Not all parts comply with emissions or regulatory requirements in California and states with similar laws.