Roadmaster49,
To my knowledge, the floor had a jute pad under the rubber floor mat. The inside of the doors and the roof skin, had a waffle type felt material. It is listed in one of my aftermarket catalogs as, "Felt Body Deadener." It is probably more correct. But, I don't think that it can do quite the job, the new body deadeners do now. Hope that helps with your question.
Rugo