In the end, the box went in and did what it is supposed to do.It will work fine. I had two fitment problems installing it. One of the metal flaps was not in the same location as the original and I needed to modify the fitting on the small vacuum actuator in the car. Also, the foam gasket that came with the kit to mount the box to the heater blower motor was too thick and heavy. I could not make the box fit with that gasket in there. I cut the gasket in half and it was still too thick. I ended up using a soft foam gasket from another seal kit that I had and throwing away the one that came with it.