you need 2 of the following:
OEM Front 5-Lug Hubs- $95.00 each
OEM Rear 5-Lug Hubs- $90.00 each
Rear Wheel Inner Bearings- $84.99 each
you can re-use your rear bearings but I think it's a PITA to seperate them and re-press them on the new hubs.
Performance Nissan Parts
Edit: $539.98 for OEM