I have a 4.375 set in a H260 LSD centre, the whole 3rd member.
Also a H233 front gearset, that is a ring gear and pinion only.
They are out of a diesel GQ leaf ute. 265000km. I just drained the diffs and removed them from the vehicle yesterday and they had the correct oils in them.
PM me if interested. Putting the whole 3rd member in will save a lot of work, you'll only need to fuss about with alignment and bearings in the front then.
I'm in Perth but can put it on a pallet and deliver to a freight company for a fee.