1G need some TCU info

[1991eagletalon]

i have two tcu's one is number md750092 in the other is md750093 are they interchangable? my trany is stuck in 3rd gear ... the transmission was working great in then i got in it was stuck in 3rd gear any help would be great... bye the way my tcu number is the md750092

 

[Bobster66]

MD750093 is the TCU used from mid 90 to mid 92 for FWD turbos. It is the one in my car.
MD750092 is the TCU used during the same time period for AWD turbos.