You are correct in getting to the tie down via the bulk head.
The next step is to remove the bulk head on the trunk side as the gas tank comes out through via the trunk. At least that is what I had to do.
I had to remove the gas tank as the pick up tube was not functioning properly.
But in order to do get the gas tank out I had to cut back a few tabs in the trunk area to give the tank room to slide out.
It seemed to me that everything was in place then the body was lowered over the frame.
Hope this helps.
Once the tank is out, I would look at the tranny mounting bushes.
Regards
Rich
#34