How to Tell Year Trans/T-Case/Diff - AUTO!

[97gst_spyder]

I'm having this issue with my AWD swap. Seems like the rear end is holding the car back, at all times.

The swap shell was a 98 Talon Auto. Rusted to hell.

The Trans/T-case/LSD Diff all looked like they matched - rusted to hell.

How do I tell what year AUTO trans/t-case/diff I have and if that is the real issue I'm having?

 

[Jon81Bell]

There should be numbers stamped somewhere on the housing of the transmission and transfer case that you can look up. Not sure about the diff.