I'm Cummins swapping a '74 Duster, thought I'd share the progress.

rmchrgr said
No one is arguing the fact that the guy can do whatever he wants with his car. I mean come on.

To your point - people don’t generally modify unibody cars to such an extent. Nor do they put 1,500 lb drivetrains in 3,400lb. cars. When you start going beyond stuff like frame connectors and torque boxes you better be a really good fabricator or you take it to a chassis shop and have **** done right and safely. Problem is the OP admits that he does not know what he is doing. That does not sound like a recipe for success.

Frankenstein is a cautionary tale.

I was trying not to be rude in anyway I hope I made that clear. I promise you it's not as concerning as it sounds on paper. The car will hold it. Let's not forget the best way to learn is to just dive in and figure it out. If he don't know how to fabricate. He will soon. And if not he has this thread and we can help him . I'll say it again in hopes he reads it. Triangular stuff ridged trans tunnel. Ridgid firewall tied into trans tunnel. Sub frame connectors. Aftermarket disc brakes stiffen k frame in the center accordingly. Myself I would straight axle swap it in front and the leaf spring will spread the weight across the front rails just fine. The bummer will be the very short driveshaft if he pulls it off it's gonna be pretty awesome rattod duster.