A body Torsion Bars

65 CUDA said
Idk about that but I have had 5 a bodies barracudas 2 were /6 and the others were v8 and i checked the bars and they were different sizes

If I'm not mistaken /6 non AC cars used smaller bars than the AC cars did. The /6 AC cars used the same bars as 318 cars with std dty suspension so technically the OP is correct that these could also be /6 bars