HQ-WB (LC-LJ too) had a partial front chassis, and unibody rear. The idea was to bolt new subframes/bodies as engineering changed. Then they went and threw the whole lot out for the VB Commodore, such a waste of investment...
On topic: Great month for Territory! After driving one, I can see the attraction of the new diesel. It's quieter than our inline 6 Territory as well, that was a bit of a shock!