Wilwood Combination Proportioning Valve

Get factory-style combination valve function with aftermarket-grade adjustability using this Wilwood Combination Proportioning Valve, PN 260-11179. Built for Chevy and GMC owners who want a more complete brake bias solution than a simple inline proportioning valve, this unit combines multiple brake system functions into a single, compact housing.

This valve is a great match for guys converting an OBS Chevy or GMC to a modern dual-circuit disc/disc brake setup, especially when pairing our front upgrade kits with a rear disc conversion or big brake kit. Rather than relying on a single-function inline valve, the combination valve helps manage pressure differential warning, metering, and proportioning duties together, similar in concept to a factory combination valve but built to Wilwood's performance standards.

Like all Wilwood brake components, this valve is intended for use on performance, racing, and custom-built brake systems, and is not a direct plug-and-play replacement for any single OEM part. Installation will require some brake line fabrication or adaptation work, so this is best suited for builders who are comfortable modifying brake hydraulics or working with a shop that is.

For full technical specifications and installation guidance straight from the manufacturer, reference Wilwood's own data sheet before beginning your install. As with any brake system modification, always bleed the system completely, check thoroughly for leaks, and test at low speeds in a controlled area before returning your Chevy or GMC to normal driving duty.

View Wilwood's installation and technical data sheet here.