This service repair workshop manual provides comprehensive information for the International Harvester 354, 364, and 384 Series vehicles. These robust machines, typically equipped with diesel engines and manual transmissions, were engineered for reliability and performance across a range of demanding applications. While specific production years are not detailed, this manual covers a broad spectrum of these models, ensuring that owners and technicians have access to the necessary data for their operation and upkeep. The purpose of this manual is to serve as an authoritative guide for maintaining and repairing your International Harvester vehicle. It includes detailed step-by-step procedures, essential diagrams, illustrations, and wiring schematics. Coverage extends to routine maintenance, troubleshooting common issues, and understanding technical specifications for critical systems such as the engine, transmission, brakes, and electrical components. This resource is designed to assist mechanics, owners with mechanical aptitude, and independent service professionals in keeping their vehicles in optimal working condition.