Seat belt lengths?

[MY340]

Just going with some new universal belts for my 70 Duster. Are the backs longer than the fronts? I'm thinking 61" for the front bucket seats and 74" for the back. Is this correct or will 61" work fine for the back also? I know the ones in the car now aren't the factory ones.

Thanks guys!

 

[Sussmad]

I think it is the opposite. At least it was for my 63. I did 60" (I forget the exact length) in the back and the same in the front, but I wish I had done the longer in the front. The front belts mounted on the floor further back than I thought. I will try to check my 68 valiant which has stock belts and might be a closer comparison to your Duster.