I just installed a windshield frame in my '39 two door. It came out of a different car. A friend of mine and I put it in and it fits very loosely at the ends and just doesn't seem to fit tightly at all anywhere. Do I need to loosen all the adjusting screws at the top when I put it in? The seal, a new Bob Drake curled around a lot at the outer edges. What do I need to do? Thanks in advance, Rod