Hi Guys, I need some help deciding what to do about this--- I was sold a "GOOD USED" Ford 9" Posi 3d member by a local Mustang shop in Blue Ash Ohio. He said it was good to bolt in; but failed to put in a new crush sleeve when changing the yoke so the preload was way off on the pinion bearings, and the seal looked like it came off a 50 year old dozer. When I got it cleaned up I found it has a defeat in the ring gear. I tried to ask for my money back and he refused.
SO what do you guys think, I have attached a picture. The ring defect is on the 'coast' side of the gear but I am afraid it will make noise or worse be a notch for a crack to begin. I even replaced the crush sleeve and seal and he refused to own up to his deceit.