Hi,
If "Limited Slip" is what you mean by "Posi" then Toyota did have LSD's from factory in that year, I know it because I got down LSD oil for a friend of mine.
I think only a few models had it and my 89 pickup dont have LSD. It may have been an option
If you had them in the US,,,,, I dont know.
However, please check
Nihal
