Sorry for the delay, I've been grappling with year-end.
Found the invoice. Originally Liberty / Legacy Konis were installed; parts are K8610-1266SPT and K8610-1267SPT (the field display on the invoice runs into the next field so there may be more codes).
However, after some issues with the front they did a swap to Koni's for a "VR Holden Commodore" for the V8 model (I was told - but not documented.) The VR was a 1993-1995 GM local model.
Hope this helps.