This technical manual (TM 9-2320-208-20P) provides detailed guidance on organizational repair parts and special tools for the 1/4-ton 4 x 4 M38A1, M38A1C utility trucks, and the M170 ambulance. It includes exploded views and descriptions of various components organized by systems such as engine, fuel, electrical, transmission, and more, along with requisitioning instructions and maintenance codes. The manual serves as a comprehensive reference for maintenance personnel to ensure proper care and repair of the vehicles.