2004 Dodge Dakota 4.7 A/C blows out of defrost vent on 2004 Dodge Dakota

A/C blows lightly out of front dash vents and floor but mostly from the defroster. I checked the blend actuator and it is working fine. Appears that the linkage to the door that redirects the air from the defroster may have come loose. What is the best way to get to that defroster flap shut so I can have cool air in the Texas summer?

Asked by for the 2004 Dodge Dakota