8-3/4 Vs Dana60 Vs 9" Rear

One point of info. I had a 70 Duster with a 69 Charger
dana 60. It fit with no problems. Had about 1 in clearance
between the axle and tank. But I would go with the 8 3/4.
Easy to change gears. Then you can have different ones
for different conditions or street and track. Like I do.
4.30 for the strip and 3.23 street.