The 1951 The New Thompson Repair & Tune-Up Manual Vol. III for Auto Transmissions Fluid Drive and Hydraulically Operated Planetary Gear Type Transmissions is a vintage American manual written specifically for auto transmissions in the United States. This book offers valuable insight and guidance for repairing and tuning-up vintage vehicles from the early 1950s, making it a must-have for collectors and enthusiasts of American automotive history. With detailed instructions and diagrams.