* 4L60-E: This was the most common transmission. It's a four-speed automatic.
* 700R4: Less common, but possible, especially if it's a slightly earlier build in the model year. This is also a four-speed automatic, but a slightly different design than the 4L60-E.
To know for sure which transmission is in *your* specific 1993 Caprice, you'd need to check the vehicle's identification number (VIN) or look at the transmission itself (though identifying the transmission type requires some familiarity with transmission identification).