Selling a complete 9" third member out of my Bronco. 67k miles. I do not have the expertise to properly inspect the gearset but it "works" and it had oil when I removed it.
eBay says $250+shipping but I'll sell to forum users for $200+shipping
https://www.ebay.com/itm/Ford-9-Inch-Third-Member-3-00-31-Spline-Open-Diff-/363789279723?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0