200-4R Automatic Transmission

In the foreword, R.F. Perry Director of quality Control reliability and Service states “this book is intended to give the reader a complete understanding of the principles of operation of the model THM 200-4R Hydra-matic transmission. The mechanical function and hydraulic operation are described in detail.”

George W. Griffith, general manager of the Hydramatic division of General motors says it best “This manual explains the theory and operation of the 200-4R automatic transmission. The detailed text and color illustrations will instruct the reader in the mechanical power flow and hydraulic systems of this unit.

This fully automatic 4-speed (overdrive) rear wheel drive transmission has been designed to meet the needs of today’s high tech, computer controlled engines. These improvements have been accomplished without sacrificing any of the Hydra-matic durability, quality, and performance”