r32 gtst only came with VLSD.
try popping your half shafts out your current diff and see if they fit your unknown diff.
trying to source half shafts (stubs) for unknown diffs is a nightmare.
if you look at the 3rd pic down, you will see a square jobbie and some triangle things inside the big hole, this will tell you if its a 2way (the triangles will be the same or a 1.5 way the will be different.
https://www.driftworks.com/forum/thr...-lom59.273059/