8 3/4" sure-grip swap and rebuild questions

Well it whines, obviously I'm not very happy about it. I'm hoping it might just be that the pinion nut isn't tight enough (I didn't torque it properly) and/or the bearing races weren't fully seated when I installed them. It started out only whining on coast from what I could tell but when I gave it some gas it seemed to start to whine on acceleration too. If it ends up being that the pinion depth is off I'm gonna cry lmao.

I don't get it the mesh pattern looked great why does this thing have to break my balls like this...