with a new 6 speed coming out, there must be material changes involved. does anyone know if the '06 6 speed will be built tougher so that the 'point of upgrade', is a bit higher on the torque scale?

allison has a6speed trany in the feright liner could that be similar or mabe the one they are using just a and idea

From what I understand no, there are not any material changes everything is there IIRC.