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.
Well by my nissan fast here at work it says it has a h233b in the rear and not the bigger h260 like most 4.5 do have may be due its an auto not sure on that? I do know my 4.5 has the h260 and i am looking to change my diff gears soon hope that helps
The H260 rear is noticeably larger. However, if you do have a h233, it does make getting 4.3 gears a bit easier in that the rb30 (3.0 litre petrol) GQ's had 4.3 gears in h233 diffs.
If you DID have h260, alot of GU ZD30's manuals (not auto) have h260's with 4.3's.
What truckster said about Brunswick Diesels applies to any place that does diesel V8 swaps. They'll take out 4.3's and 4.6's (RD28's) and install 4.1's and 3.9's. Brunswick's and Linquip in Qld would arguably be cheapest as they do the most swaps.