The International Harvester 384 is a robust tractor model, part of a lineage of durable agricultural machinery produced by International Harvester. Known for their workhorse capabilities and reliability, these tractors were developed during a period of significant advancement in agricultural technology, likely in the late 1960s or early 1970s. The 384, often featuring a diesel engine and a manual transmission with multiple gear sets, was designed for demanding farm work. Its engineering emphasizes practicality and longevity, reflecting International Harvester's heritage as a major manufacturer of agricultural equipment. This comprehensive workshop service repair manual provides detailed information for the International Harvester 384 and related models sharing components. It covers all major systems, including engine, transmission, fuel, electrical, hydraulic, cooling, braking, steering, axles, power take-off, chassis, and operator station. The manual includes periodic maintenance schedules, lubrication guidelines, inspection procedures, step-by-step repair instructions, overhaul procedures, and troubleshooting guides. With detailed wiring diagrams and diagnostic information, this manual is an essential resource for professional technicians and DIY mechanics seeking to maintain and repair their International Harvester tractors accurately and efficiently.