Ummm..... Aren't the heater blower motor and the A/C blower motor the same motor.
I've had my entire dash torn down before & there is only one motor that I have found. It's under the glove box. Please update me on where the second motor could be.
I have always noticed that the catalogues list a heater & the A/C w/ seperate motors. I've also noticed that one motor is always more expensive and it comes w/ the cover & the round fan blades. The cheaper one is always just the motor.