My Toxic '74 Duster

If you are just looking for improved street cruising. You could go a step under what 72blunblu list

Helwig front sway bar
PST 1.00" torsion bars
Bilstein RCD shocks
Moog offset 7103 rubber bushing for stock upper control arms installed for more caster
stock front end rebuild
stock original 340 rear leaf springs
Mopar remanufactured Van steering box (long discontinued)

15x7 front rims with 4.25 to 4.5" backspacing
225/60/15 front tires. Watch this thread if 235/60/15 15x7 4.5 bkspace rims fit: The cost of wheels and tires.
15x8 rear rims 4.5 backspacing
275/60/15 rear tires