* A4LD 4-speed automatic: This was a very common transmission for many engine options.
* E4OD 4-speed automatic: More likely found in heavier-duty trucks or those with larger engines.
* ZF-5-speed manual: A 5-speed manual transmission was also available.
To know for certain which transmission is in *your* specific 1993 F-150, you need to check:
* The vehicle's build sticker: Located inside the driver's side doorjamb. This sticker will usually list the transmission type.
* The transmission itself: Look for markings on the transmission case.
* Your owner's manual: If you still have it, it will specify the transmission.
Without more information about your specific truck, it's impossible to say definitively.