Hi, another question about putting my '76 B back together(problem is I didn't take it apart) I think this will be easy but I haven't been able to ID this part in any of the order books or in photos. On the rear deck before the trunk lid, there is a large threaded hole on both sides about 1/4" or so, what goes in there and what is it called? One more, on iether side just rear of the door latch there are four holes in a square and then a single hole to the rear of the four, same question as above.Thanks for the help on the window, and any help with this one would be great!Thanks, John