Quote Originally Posted by Polaraco View Post
That thing will look like a corkscrew if you don't brace it right. I'm a long time Mopar Guy and know the A Bodies well

I agree after owning and building several Darts, Dusters and Valiants. The odd torsion bar broke on a few of my A body cars when I started to add more torque and hp. BBs were harder on front end parts but even the small block cars would break things.

I would suggest a full tube frame for the weight, engine placement and extreme torque potential of a Cummins 5.9 What engine is in the Duster now?