'73 Dart Sport 340 H Code leaf spring replacement recommendation

Back end starting to sag due to age. 6 leaf springs

What vendor/type? Thanks!

Looking to raise the back about 1-2" over stock nothing more. Don't want the back end real high.

Tires:
14" Rallye Wheels
Front: 215/70 R14
Rear: 235/60 R14

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I agree with Rocco. What makes you think the springs have sagged?

I will tell you I have the same car (which is really a 1973 Demon that Chrysler called the Dart Sport, caving in to religious nuts) and the bushing that goes into the front of the spring is a queer diameter. I never did find out why I had a different size. I was told all the 73 340 cars had them. Calvert, Competition Engineering and a third source I can't think of said that was BS. I know mine was wrong, as I had to make my own front eye bushings.

That was a FWIW heads up.

Also, I know some of the aftermarket springs are coming with a higher spring rate than what the factory had. And I don't mean aftermarket springs like Calvert.

Just know you could run into some weird issues.