I have tried a few different brands. I just did the inside cab area of my Toterhome. Road noise plus the diesel engine in the front was loud. I used 2 layers of Dynamat extreme on the floor, in the dog house and one layer inside the doors and another between the door and door panel.
Made a huge difference in the quietness in the cab.
Be careful of some of the ones from Home Improvement stores that have a tar like material in them. On a hot day your can smell it from 20ft away.
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65 GTO, Tiger Gold, Nostalgia Super Stock 421, 2-Carter AFB carbs, Stock Suspension, 3550lbs Full Exhaust-- 9.70's@135
66 GTO (Retired race car)
421 CID
Multiple NSCA/NMCA World Champion
66 GTO 389 3x2, 4 speed, 3.90 gear, Montero Red 33K original Miles
67 GTO 2dr Post, 428, Tri Power, 3.55 Gears
80 Trans Am Black SE Y84 W72 WS6
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