Yup that's what I have in my 69 safari that I am doing the front floor in. The front one is covering my spare tire pocket that's directly below it. I did have some thin factory Styrofoam above that panel for insulation, it was about 1/2" thick and the kind of Styrofoam that a big screen TV would have in the box to protect it. I would recommend making sure the aluminum is sealed up if you can access it from the bottom and top. I found a lot of dust in one side of mine therefore that indicates a pretty good air gap. The aluminum above the step is just another protective layer, probably helps keep critters from getting in the the folding step area and chewing through exposed plywood.