LOL . That is a fresh rebuild of one of the blown diffs. The clear Diff fluid really makes it look like there are notches out of the gear doesnt it. I didnt even notice that until you posted that. I didnt empty the fluid out of it since It had just been rebuilt I just pulled the diff gear off of it and took a picture. The 43 tooth is the one that is wore acutaly has about 1/8th of an inch play in it. Funny how things can look.