Could anyone give any guidance on what is wrong with this wear pattern!
Hard too tell with the pictures being a bit blurry...is the edge of the ring gear in the pictures towards the cover or towards the front of the car? If I'm correct it looks like the pictures are with the rear cover off, so my guess would be the Pinion depth is wrong ...looks to be a little deep into the ring gear and riding to much on the edge but I can/could be mistaken. Good luck with it.
If what I see is accurate; it looks like the edges of the ring gear and pinion are chewed up. If so, that is definitely set up wrong. I just helped do my first gear installed and it was a major PITA to get the backlash and swipe pattern set. Even then there is still some whine at certain rpms, but none on decel/coast.