Just pulled this OEM LSD out of my 3.7 pumpkin when i swapped to the kaaz.
Functions just fine but didn't meet my needs for drifting so I got the 4.3 and welded that OEM diff and shelved this one.
Doesn't need a rebuild but I think it would benefit from one, or a weir kit.
Does not have a ring gear on it (as per the photos) so attach it to whatever final drive you have
Rockauto has all Timken Bearings for this diff as thats what I got for mine.

Located in Langford BC but I also go to and from Langley BC on a semi regular basis.
Prefer to sell locally as its a heavy unit