Transmission fluid capacity?

This all depends on what transmission you have. There were two options for this engine so I am going to include both processes and info.

Here are a couple guides that will help with general info and a video that shows how to do this on an F-150. Clearly it is slightly different but same basic steps.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

https://youtu.be/A-X4afWLLO8

Below you will find the info from the manual that will help with any other detail needed. Please let us know if you have other questions. Thanks