1973 Plymouth Duster repair and rebuild

Your right, I dont understand. I am so confused and I am at the point of giving up until I can get a job and pay someone to do this.

And if the barracuda axle geometry is different than the duster axle geometry, then I really screwed up. As my new 8.8 is welded up like the barracuda axle.
I don't know how else to explain it and I've told you which publication to get. Anyone who owns a Mopar should have the MP engine and suspension books and I don't understand why everyone DIGS IN when I suggest that. It's almost as if people don't want to learn.