I just looked in the back of my car and I don't have an engine pad either.
No wonder it is so loud in my cabin. I had the engine pulled years ago and they must have taken it out without asking me for a replacement. I see some of the old glue in on the metal.
Oh well. I'm trying to figure out how far down the material would go. Can I put it down there without taking apart any of the engine on my 87 ? It looks kinda tight.