* Three-speed automatic (TorqueFlite 727): This was a very popular choice.
* Three-speed manual: A fairly common option as well.
* Four-speed manual: Less common than the three-speed manual, but available.
To know for certain what transmission *your* specific 1973 Dodge Dart 318 has, you'll need to check:
* The build sheet (if you have one): This document details the car's specifications.
* The VIN plate: While it might not explicitly state the transmission, a decoder might offer some clues.
* The transmission itself: Look underneath the car. The transmission case will have identifying numbers that can be used to determine the exact type. Pictures online can help with identification.
Without more information about the specific car, it's impossible to say definitively.
