8.75 rear end 657 or 741?

i believe it was pieced together the guy swears it came out of a dart?

He may not have been lying cause it could be put in a Dart even if the perches are too wide. All you gotta do it pry the springs apart until their out far enough to bolt it in. Very stupid way to do it but I have heard of idiots doing it. Needless to say that's not how to do it.