Technical '39 Ford Tudor Glass Question

The picture is of the front side gl*** for 1939 Ford Tudor. I need similar measurements for the rear side gl***. I have the channels but they are of different lengths. If I have these measurements as a reference I can make my channels work. Where they mount to the regulator and the 'pin' are in the same relative position. Only the length is off.

If not I guess trial and error is next.

Thanks