Trannies and what year they were made??

[Benwah93awd]

Is there anyway to tell by serial number or whatever the year a tranny was built when you have the trans by itself. I know there is the code for FWD turbo, AWD trubo, FWD non-trubo but how about something to say how old it is because I'm looking for a 92-99 FWD turbo and don't want a 90-91 slipped in there just because I might do something with it later down the road, any help here would kick BUTT, thanks,
BEN

 

[GrocMax]

You might try reading the first 20 pages or so of your service manual, it will tell all.