Welcome to the site, I'm also an owner of a 56 Buick century and in my 20's! I have a lot of experience working on these cars. No company makes quarter panels new for these cars unfortunately. A parts car is usually the best bet. Mine was only rusty on a fairly flat section of the quarter so I was able to make it out of plain flat sheet metal. Do you have pictures of your car you can post?
I see you also posted about changing your transmission to a 6 speed corvette. modern corvette transmissions are mounted in the rear of the car so that would not be compatible even with an adapter plate.
Bookmarks