Residual Check Valve Square Style - 2 lbs. (Disc Brakes) RPV2W headers 4 V8 1979 - 1984

4 V8 1979 - 1984 GMC C1500 Suburban 350/5

6 V8 1977 - 1985 GMC Jimmy 305/5 V8 1975 - 1978 GMC K15 350/5

with both 12-volt and 110-volt heaters offered

7L/V8 1982 - 1983 Plymouth PB250 5

Residual Check Valve Square Style - 2 lbs. (Disc Brakes) RPV2W headers 4 V8 1979 - 1984Hotrod Universal Residual Check Valve 2lbs A residual valve acts like a one way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 2 PSI residual valve is installed inline between the master cylinder and disc brake calipers to keep 2 PSI of residual pressure at the caliper after the brake pedal is released. Square Style 3 8 24 Fitting Size Specs: Adjustment Style Fixed Box Size 1 Finish Blue Inlet