Whos running over 700whp on an 8.75?

TT5.9mag said
I think if you have the D60 already and all it needs is shortening and flanges/brackets welded on your answer is easy. Use the D60. IMO though at your power level even a stock D60 won’t last too long. You need a fairly well build rear end. I looked at quick Performance stuff a while back and you can put together a pretty beefy 9” that will hold 1000+ hp for about $2900.
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So I have the 60, but all I'm using is the housing. I'm upgrading to a 35 spline suregrip posi along with the new 35 spine shafts/green bearings from Dr. Diff. So it certainly wont be stock. I'll be $1600 in it with all the parts. Even less if the 60 I have is 4.10. I gotta crack it open, because if it is then I can use those gears again.