Found a 8.75 in a 65 or 66 coronet at the wrecking yard today...a chart I looked at says it is only 1.8 inches wider than the 7.25 in my 72 Dart....guy wants $150.00...it has 2.94 gearing I believe....when I turned the axle it felt a little tight and possibly needing new bearings...which I would...