Hey my68rocks, welcome to the site and congrats on joining the charger put it back together again jungle! We’ll have to trade Charger R/T restore stories… According to your fender tag you should have a 3:23 gear in your rear end (AX = 4). If the car is an auto it should be a 8 ¾ axel. I can’t tell form your pic what kind of axel is on the car. Can you post a better pic?