I am hoping one of the Thunderbird guys can help me out?   I am replacing the lower radiator shield in my 55 TBird.  This is the large sheet metal part with the circular hole and cover in the middle that sits in front of the lower radiator support.  I assume it's there to direct air into the radiator and to keep rocks out. I have the bumper, horns, grill and lower valance out of the car.  In order to replace this part, I need to remove one side of the passenger air vent grill.  These are the parts with the screen over the end.  I can't get the shield by these vents.  I removed the small screws you can see from the inner fender.  How to I get at the top screws and replace this part?  Thanks.