I think the wheels are in Aukland too
And they are just wheels with no tyres
I'll find out again from him.
I still need to get into the shed and do some measuring.....its unfortunatly dark when I go to work and dark when I get home so I have to wait for the weekend when the suns out to have a look. We have a lazy long weekend this weekend so I will be taking a measuring stick to the diff then.
I'll be back in touch when I know.......and once I have measurements it would be nice if someone can tell me what I have. I'm not much good with identifying diffs.

edit.
Wheels have no tyres (unless he can get them here cheaply).....can be boxed for shipping.
Problem is they are in Wellington.