I used Dynamat over every exterior metal part (inside the cab). Floors, fire wall, behind fuel tank, roof, inside doors, etc. that helped a ton. I decided to use the water heater insulation (bubble wrap with foil on both sides) under the jute padding and I taped it to the floor with the metal tape for duct work. Once I put the carpet/jute down, I can talk to my kids without yelling. Obviously, my truck get hot inside due to Texas heat, but I think it’s just the hot air (maybe my hot air)! The other thing I decided to do was tint my windows with ceramic 70%. This has helped a great deal with heat!
Last edited by ndkid275; 08/03/2019 3:10 PM.