Don't know about this being a GTO rearend. I've seen a Chevelle r/e in a Camaro before - quite easy to tell that this has been done - eyelets are obvious, and, unless it's been narrowed, they're too **** wide. Will look again today, but certainly don't think there are any eyelets on this one, doesn't appear to be narrowed, and leaf spring perches look to be factory welds...
