1971 MACK RD - FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM 1971 MACK RD - STEERING:LINKAGES 1971 MACK RD - FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM 1971 MACK RD - COMMUNICATIONS:HORN ASSEMBLY 1971 MACK RD - SERVICE BRAKES, AIR