72 Dart Torsion bar replacements??

If the car has just gotten lower over time it’s probably just worn out torsion bars.

All springs sag over time, with a leaf spring it’s easy to see, they go flat. With a torsion bar there’s nothing to see because the “sag” is happening radially. The car just slowly gets lower because of how the suspension depends on the hex offset of the bars for setting the ride height.

Torsion bar socket failures are usually catastrophic, ie, driving followed by a big “bang” and suddenly being lower on that side.

Not saying you shouldn’t check the condition of the sockets too, but it’s very likely the bars are just worn out.

With as undersprung as these cars were from the factory, the PST 1.03” bars are a great upgrade for even just everyday driving. With a good set of shocks the ride quality is great!