I have a 58 and my floor was just bare metal. I live in the Atlanta area and I am wondering if any of these products create condensation between the floor and the insulation. My other question is do these products make a larger amount of difference than carpet and a heavy floor mat since when driving the most heat and air hits the firewall and toe board. I bought a 71 in 72 and have a factory rubber mat with the insulating material next to the cab floor and when it was pulled back about 5 years ago I had a lot of rust from the inside down and this truck is still all original inside.
