Outer Limits 4x4 Board

I know this info is out there somewhere I just cant find it.

trying to find out exactly what my transfer is and what its out of.
all i can find is borg warner 13-61-005 and a serial...
is there also a way of telling if my auto was also from the same car?

cheers
Simon

thats the viscous center diff type transfer isnt it? would be out of 89 classic rangie or the likes I think.