Will a 66 b-body 8 3/4 fit without cutting?

Not saying I would do this myself but I remember back in the day (late 70's) a certain Dart Sport running a b-body Dana just bolted in as is. I would not have noticed it untill he told me, but when viewed from the rear you could see the springs cocked to meet the unmodified spring perches. Ran it that way for years eventually running mid 10's et/high 120's mph. Always kind of bothered me somewhat, but it wasn't mine and if for some reason I were in a pinch I know I could run it on the street that way about forever due to watching this guy.