Purchased 8 3/4 rear I need some help

yeah he did you can see where the hub is clean from having the slug in there he explained to me exactly how he did it he has the end plugs the straight shaft to go through those and a fitting on the carrier.I want to believe him but I got a place to take it to have it checked though. Why is it that every time I have some one do some thing for my car they f*ck it up. The only reason I had some one else do it is because I don't have the jig to. I just don't trust anyone to do work on my car. I do it my self. But for things like this I have to have some one else do it since I don't have the capability. I really hate it when I am at the mercy of someone else's work. I get let down every time.:banghead: