There are four possible birfields in the 80 (in North America anyway).
1) Non-ABS 1991 to April 1994, Uses the "short" drive flange.
2)ABS 1993 to April 1994, Uses the "short" drive flange.
3) Non-ABS April 1994 to December 1994, uses the "tall" drive flange (VERY RARE)
4) ABS April 1994 to end of production, uses "tall" drive flange.
The early ABS birf has been "set-superceeded" to the later version by Toyota and requires the addition of the "tall" drive flange in the replacement.
An ABS birf can be used in a non-ABS axle as long as the appropriate drive flange is used. A non-ABS birf could be used in an ABS axle as an emergency repair, again as long as the appropriate drive flange is used. Of course in this case the ABS is disabled.
"Tall" drive flange birfs are prefered as there is more spline engagement.