* Automatic Transmission: The drain plug is typically located on the bottom of the transmission pan. You'll need to get under the car to see it. It's usually a fairly large bolt.
* Manual Transmission: Manual transmissions typically don't have a drain plug in the traditional sense. The transmission fluid is usually changed by removing the side cover or, in some cases, specific filler plugs. This is a much more involved process.
To find it: The best approach is to consult a repair manual specific to your 1997 Mustang (either automatic or manual transmission). A Chilton's or Haynes manual will show you exactly where it is, along with diagrams. Searching online for "1997 Mustang [Automatic/Manual] Transmission Drain Plug" with images might also give you a visual reference. However, relying solely on images without a manual could lead to mistakes.
