Which automatic transmission do I have?

Your talking about the door code?

Here is what I found.....
TR position 1 (Transmission) T Automatic Overdrive (AOD) Transmission
TR position 2 (Left front spring code) R Part No: E5SC-UA; Catch-Word: MOY
TR position 3 (Right front spring code) R Part No: E5SC-UA; Catch-Word: MOY
TR position 4 (Left rear spring code) S Part No: E5SC-MA; Catch-Word: MIL

So the T is for an AOD and the other letters are the spring code/type.