They can be a pain to adjust to close properly. Keep trying, you will get it to work and not know how you did it. I have a spring loaded version on a 49 and I can't even get the bolts started to put it on. When I think I'm real close to getting a bolt started, it snaps closed like a bear trap.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission