i just saw your message and i know its from july but ill try to help . i have a 75 caprice classic convertible and my top mechanism broke and i went to a place in my hometown who repairs convertible tops and they got it fixed like new. you might want to check places that repair convertible tops or do work on old cars. i hope this has been some help.
Check with your local auto interior shops also...since they have to replace tops some of them are also able to do top repairs, or know someone that can fix it.
My top had some problems and my interior shop fixed all of them...they had to in order to get the top to fit right; perfect now.
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