8 3/4 Gear pattern

I picked up a 489 case with Auburn cone posi for a good deal I thought. Took it apart to inspect because the yoke was off, it has a crush sleeve eliminator in it and 2.91 gears. The pinion has been ground on but wasn't planning on using anyway. The pinion turned with basically no preload when I torq the yoke so reshimmed and got 6 in lbs turning. Put carrier back in and checked pattern. At this point I am just playing with it because I will be changing gears and it has been awhile since I set one up. How does this look? Threw in a pic of the pinion for laughs!

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for a used gear set the pattern is right on ,, should be no issues if you had to run it ,,, but why someone would grind on the pinion that way is beyond any reasonable reason , save the shim under the pinion head bearing for your next set up , add this gear set to your scrap bin.