CHEVROLET - P6T042 - 1983 RSS 1983 CHEVROLET P6T042 SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC 1983 CHEVROLET P6T042 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER 1983 CHEVROLET P6T042 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER