It's been so long since I took my car apart, I've completely forgot what this bracket is with the square hole in it. It's just above the top door hinge on both sides.
On the inside of your fender there is a bolt hole with a u-nut. You should have a 5/16th bolt with a large washer that goes thru that bracket into the fender.
That nothing, I got 4 answers to my question before I could come back to the 'puter with my coffee. Thanks guys.
you will need a clip on nutplate and put into the hole with the nut facing the front of the car, then the screw goes in from the door jam into the fender and then into the nutplate