My '83 Park Avenue has a bad temperature door/air blend door actuator. The part # for the actuator is GM 25501648. According to my shop manuals the only other model that had the same system was the Electra Limited. I have searched for along time and found one N.O.S. part and that one was damaged. I have called several junk yards and they all say that they can't help me. Does anyone know if someone has started making the actuator, can repair one, or has used actuators. If anyone has any ideas please let me know. The car has very low miles and it sucks no being able to find the part.