i take it you can put a 21 spline case in the front and a 23 spline case in the rear?
i'm asking because when i eventually do dual cases, i want to put in a set of 4.7s in the rear case and 23 spline is the same cost. reasoning behind the 4.7s is that the case i'm gonna be using in the rear is a '79-80 style with the weaker input shaft with the raised splines
