Here are pictures of the suitcase, evaporator, and blower motor. The first picture shows the two halves of the bare suitcase. Note that the inner half has a large hole in it. This happened due to a combination of deteriorating subframe bushings, and dropping the rear of the transmission/engine in an attempt to fix a transmission dipstick tube leak. The passenger valve cover hit the suitcase and broke out a large chunk.
The second picture shows the inside of the suitcase with the blower motor/impeller and evaporator in place. The third picture shows how the evaporator is held in place between the 2 halves of the suitcase. There is a gasket on the outer suitcase (fourth picture) and a metal baffle to seal the outer half from the inner half and force all airflow through the evaporator. The evaporator upper tube foam seal can be seen in the lower left of the fourth picture.
The fifth picture shows the inside of the inner suitcase half.
There are part numbers molded into the halves of my 67 suitcase: Outer half = HRD P/N 3013465 Inner half = HRD P/N 3013466
