A New Automatic Transmission for Improved Fuel Economy --General Motors THM 125

A lightweight, more fuel-efficient three-speed automatic transmission has been introduced by Hydra-matic Division of General Motors Corporation for the new, totally redesigned 1980 X-car line.

The transmission has a two-axis construction and also contains the planetary gear final drive and differential gear units. Many unique features, such as optimized torque converter, variable capacity pump, and wide ratio gearing are included to increase its efficiency.