Difference between A/C and non A/C.? read within.

[Dean]

Well, was wondering why I had little heating inside the car, went to change the matrix, pulled out the blower motor to fix the squeak.
And the flaps for to block off the outside air coming in, hot air going into the car are not there.

So was wondering, is there any difference in the non A/C and A/C models where them flaps are, where the blower motor sits?

Just wondering if I could keep the A/C centre bit, where the controls are, and change the passenger side bit, so I can have a deep glovebox