You will reuse the nut but DONT use a impact. And yes OEM from tousley. They are Toyo ones. I used top name brands in my Saleen none lasted till I went back to OEM for what its worth.
Check out summit too and jegs. I got a ford racing hub for the rear for $149 (ford wanted $318 for oem) and also got the ford racing (timken) bearing from jegs for $37. It was $40 at autozone for the Timken. Saved me a LOT of money.