where can i get diff gears

[VPS2]

im looking to get a 3.9s diff gears for my vp auto v6 and i was wondering were in adelaide i can buy them and how much are they roughly and is it safe to but them of ebay

[Wagon_Wheel]

Brand new the gears will be around the $600 mark.
Second hand you can pay any where from $50-$300 or so.
If you keen, you can pull them out of a skyline yourself.
As always on ebay, buying a second hand item that you cant see, you take a risk. The could be worn, damaged or noisy and you wont really know til they are in the car. But i wouldnt say dont buy them off ebay