I have a 1991 Chevrolet C1500 pickup and the motor that moves the flap to blow cold or hot air is jamming up and going out. I constantly have to bang on the bottom peice below the dash to un jam the motor and make it turn. The motor is in an assembly directly behind the glove compartment on the left side. I took the little assembly appart and checked for dirt in the gears and everything is fine. Even with no load on the little motor it jams so my guess it is worn out. Does anyone know where i can buy a replacement for this other than the dealership?[:@] I've looked all over ebay and cant find anything and also some GM sites for stock OEM replacements and i just cant seem to find the part. Does anyone know exactly what this part is called and where i could get it? Possibly even a part number because mine is worn off and i can't read it. Thanks.