82 380sl top removal problem

[exsailor66]

I’m sure this has been addressed before, but I couldn’t find it. Is the database searchable?
OK, we got the two securing points at the windshield, the two near the door, but having problems with the locking pin at the rear of the top. When the lever is turned, you can hear it relase, but it won’t release completely. It lifts about half an inch, but something is still holding it.
We tried wiggling, rotating the top, etc...to no avail.
Can anyone help me?
Thank you.