* Cruise-O-Matic 3-speed automatic: This was the most common automatic transmission. It was a relatively simple and reliable unit for its time.
* SelectShift 3-speed automatic: This was a variation of the Cruise-O-Matic that allowed for manual shifting using a lever on the steering column. It wasn't a true manual but offered some driver control over shifting.
* 3-speed manual: A standard, column-shifted manual transmission was also available, particularly on lower-trim models and with smaller engines.
To know for certain which transmission is in a *specific* 1967 Thunderbird, you'd need to check the vehicle's documentation (owner's manual, build sheet if available) or examine the transmission itself (usually identifiable by casting numbers). The VIN may also provide some clues, but consulting a Ford VIN decoder is usually necessary for precise information.