Need some help, when I bought my TJ the mirrors were mounted on the the windshield frame. I want to move them back onto the doors, but something is missing. I have the door brackets but what goes inside the bracket....I guessing maybe a spring, washer and of course the nut. I know the mirrors are designed to fold if the strike an object. Went to my local Jeep Dealer and they were of absolutely no help other than offering to sell me a set of new mirrors for $400.00. Any help will be welcome.