1974 INTERNATIONAL HARVESTER 1603 - VEHICLE SPEED CONTROL:LINKAGES 1974 INTERNATIONAL HARVESTER 1603 - SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS 1974 INTERNATIONAL HARVESTER 1603 - SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS