WESTERN STAR - CONVENTIONAL - 1974 RSS 1974 WESTERN STAR CONVENTIONAL SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:DRUM 1974 WESTERN STAR CONVENTIONAL SUSPENSION:MULTIPLE AXLE 1974 WESTERN STAR CONVENTIONAL SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS 1974 WESTERN STAR CONVENTIONAL STEERING:LINKAGES