1966 Dodge Dart
What I did in the trunk is make a plate out of aluminum [thin gauge] I used the trunk extension seam as a guide and made the aluminum plate to extend to the quarter panel.[from the wheel tub to the back of the trunk floor] Using "door edge" protectors [found them at Auto Zone] on the outer edge of aluminum panel which lays against the quarter panel for trunk "weather proof" I then bead rolled a few lines on a 45 degree angle to increase strength and add a little detail. Then using scotch-brite sanded the pieces for a clean look. I will search for some pix, or this weekend I will uncover the beast and click some photos of both the "round rod" supports as well as the trunk aluminum plate. Believe me, I do not drive my car in the rain either, however not always is it in a controlled atmosphere, so moisture is still a problem. I have loaded one pix that I found, on the very left side you can see the aluminum panel. Not the best but maybe this will give you an idea of what I mean. The center panel is where the battery is as well as the shocks for easy adjustment! "Remove to gain access"