I am having the same problem with my '67. We just hooked up the hydraulics, the motor runs fine, but when we are dropping the top, the first hinge won't bend without assistance, then she lowers OK. The top raises with no problem, the hinges are all lubed, and apparently mobile when flexed manually, but that first hinge stays locked as we (attempt to ) lower the top every time, no exceptions. Any input would be appreciated. - John