Wilwood Proportioning Valve - GM Style Fixed w/ Delay (Metering Valve) - 260-11322

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.

Please note image may vary from product, and some items are special order.

Wilwood Engineering is a leader in performance braking systems. They offer rotors, pads, calipers, master cylinders, and even complete brake kits!

About Wilwood Engineering-

Founded in 1977 by Bill Wood, Wilwood Engineering, Inc. has grown to become a leader in designing and manufacturing high-performance disc brake systems. With decades of experience, Wilwood has developed a vast range of brake components and innovative engineering techniques that allow us to create reliable brake systems for virtually any application. Our expertise lies in the rapid development of custom-engineered brake systems, utilizing a unique blend of off-the-shelf and custom-made components.

While we are renowned for crafting brakes for competitive motorsports, our capabilities extend far beyond the racetrack. Wilwood also designs and manufactures braking systems for agricultural machinery, industrial equipment, utility vehicles, snowmobiles, motorcycles, ATVs, and military vehicles, including heavy-duty brakes for the U.S. military’s Humvee. This versatility showcases our commitment to delivering exceptional braking performance across a variety of industries and uses.

Wilwood’s engineering team employs cutting-edge tools such as computer-aided design (CAD), finite element analysis (FEA), and advanced dynamic and cycle testing equipment to ensure that our products deliver the highest levels of performance and reliability. Our proprietary inventory of on-the-shelf components allows us to provide cost-effective, high-quality solutions for even the most complex braking challenges.

As an ISO 9000-compliant company, we pride ourselves on maintaining exceptional quality standards, with extensive experience in achieving original equipment manufacturer (OEM) quality levels at or below 100 parts per million (PPM).

Whether you’re looking for a high-performance brake system for motorsports or a custom solution for industrial and military applications, Wilwood Engineering is committed to delivering unmatched performance, precision, and reliability.

About Fidanza Performance-

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the Fidanza Marketplace which sells other manufacturers quality high performance parts!