[JBonpua]

Good job on your quest to quiet that noisy CR keep it up. I just love to see these kind of project as I am crazy about a quiet truck. However, I will have to respectfully disagree. I've done a lot of comparison and IMO the top two dampening materials is the Dynamat Extreme and Second Skin Damplifier Pro. Most of the hardware variety have thin aluminum backing and will not stay on vertical surfaces during extreme temperatures. They are good at what they are designed to do and that is for houses and not vehicles. There are no acoustic properties designed into these products therefore they will not work "as good" as one intended for sound dampening. I know they real Dynamat and Second Skin are very expensive but IMO well worth the price. Ive done all kinds of sound deadening on my rig including ATP acoustic blankets on the valve cover and oil pan post #6 Sound deadening/Sound Proofing... and post #1 & #6 Quiet Your CTD With ATP! The inside and outside skins on all the doors, back of the cab, inside and floor and underside of the hood are totally sound proofed. Yes my truck is as almost quiet as a Lexus. For those that have attended May Madness this year (it won Best 3rd Gen and Best of Show 2009) and last might have seen a grey Mega Cab with insulated hood. If you tap on the doors it will sound like it is full of water as there is no metal reverv at all. Here's a pic of the underside of my hood with Second Skin Motor Mat Pro on top of Dyanmat Extreme on post #2: