You are correct. 90-97 front FJ/FZJ80 diffs are what you are looking for. As for the auzzie, I don't know. The HP diff is alot like a v6 diff in that it takes the same bearings lockers, etc. But the v6 also has a 4 pinion carrier. The high pinion has a 2 pinion carrier. It wouldn't matter if you were replacing the whole carrier, but an auzzie fits inside of the stock carrier. I would call an Auzzie dealer, and ask them which Auzzie you need.
