Rear End Set-up on 72 Dart

crackedback said
The drivers of mopars are always odd... Odd number goes on driver side on US based cars.

I believe that's true for OEM torsion as well.

BHB4408 said
Adjustable Snubber Gap?

FWIW, if you do one, I wouldn't run the race gap on the street. It's liable to be banging the tunnel in dips and hills.

Maybe extended auto trans shocks..........
Mopar Performance P4529514: Drag Racing Rear Shock Absorber A-Body w/ Automatic Transmission - JEGS High Performance