Hey,
Just got a 99K 1987 5spd at the junkyard last Friday the 13th before the hurricane hit.
It looks recently re-built, with new throw-out bearing, axel seals, VSS, shift cables (cut by the yard when pulling it) 
Me thinkith tha it is a GETRAG!!
Reason for thinking that is...... It has a 1/4" thick metal plate on the rear. It looks as though the shift cables are routed from over & under, unlike my original 4spd. I also got the shifter & plate while I was there.
Only thing other than them cutting the shift cables before I got there was the also torched off one of the mounting brackets.
All of this & they pulled & cleaned it for me, for 250.00 
Is this the elusive GETRAG?
John