I need help!!! my wifes ring fell in the vent on the dash. I thing its the vent for the defrost. Is their a way that I can get into the duct? An If so how?

can try wire to hook out if no good remove ducting under dash

if you can get under the dash with your hand you may be able to pull the vent pipe away but you may have to remove a few components to gain access or try one of those grab tools that have a claw on the end

Try to use a magnet and fish it out, our you may have to take apart your dash to get to the defroster duct.

you are prob gonna have to pull the whole dash board out to get to the vents

If you can't fish out then you will have to remove dash.

There isn't a black hole in trucks that make things disappear. If it fell into the defroster ducts it's going to take some work to get it out, but I'm sure it's in there somewhere. May have to remove the dashboard and ducts to locate it. It won't be a fun job, but if the ring means that much to you, you don't have much choice.

There is a blend door acuator which moves when u change your settings. Its a electric motor. Down under dash, Will need a mech and a heating and cooling diagram to find where the motor is,

your going to have to remove your dash in order to reach down into the vent housing but dont worry you will find it.

You will need to remove the heater box. It's a big job and you will need a manual...or bring it to an honest shop that does heater work.If you can't see the ring through the windshield it's either in the defrost duct or in the main box.

I assume you have the dual climate control feature on your truck. it sounds like you have door problems. The heating system has several doors inside the box and duct work that divert the air from defrost to face and feet...i'm not 100% sure if the ones in your truck are electronic or vaccum, but i think they are electronic. From time to time the actuators that control the door go out, as every electric motor does. You need to find the ones that have quit and replace them. It is possible that the arm(s) on the actuator(s) have broken loose from the doors and are working but not pushing or pulling the doors properly...if might help to remove the front seats...just to help save your back....working under the dash is hard on your body....and it take a good half day to remove the dash, so working under it is actually less work.