Yeah cheers mate, thank you for your Service. .
It is likely that whoever rebuilt the diffs probably gave the swivel housing a clean and paint while it was off. Easy to do while they are off. I have also painted the actual Knuckle a couple of times too after a rub down to help prolong the scraper seal life
I don't know anywhere making custom swivel housings and they would want drug money to make singles I reckon.
I'm pretty confident that they have fitted the offset Race kit for you.
Water under the bridge mate, cash paid.
Welcome to this place mate, make sure you ask questions here before splashing your hard earned.
That is a pretty good vid. Interesting strip down he did. He left the stub axle on until last?? For reference though, to swap out the upper race on the king pin you can litterally take the back seals off, the upper and lower king pins out, remove the Brake calliper and the drag link and tie rod from that side and then pull the whole lot off in 1 piece. Crazy to see but easy to do. Pop out the upper race and reinstall. I'm just trying to look out for you brother.
Here is a thread I wrote a few years ago now. Before YouTube was a thing lol. It still gets a lot of traffic which 8s good for the forum
http://www.nissanpatrol.com.au/forum...Rebuild-Thread