I have a ‘68-70 B body 8 3/4 in my Duster. So yes, I’ve done it.
And I moved the perches, because I can weld and understand how the suspension is supposed to work.
I’m sure lots have people have done the shade tree install, and quite frankly I don’t care. Doing it wrong and lacking the ability to tell the difference does not make it right. Not to mention, you’re losing tire clearance doing it that way too.