Matching Torsion Bars, Leaf Springs and Shock Absorbers

I'll put in my 2 cents for Bilsteins for this application. With the "non-road race" torsion bars and rear springs. I think that investing a little in shocks that are a cut above stock is a good move. They will provide more control with those springs. I have 3 1970 Darts, on one I bought the Bilsteins and I was surprised at the difference.

By the way those "spaghetti" .89 torsion bars are what Chrysler engineers (you know, the ones that designed the rest of his car) specified for a Dart with a big block. I think they will do just fine.