While piddling with my truck, I found a foam insert on the inside of the front fender that insulates noise from the cab. If you open the hood and look down into the opening(from above) at the top back of the fender, there is a large vertical oval hole(12"X 2")that opens into the door frame. One side on my truck had a thick piece of foam plugged into the hole, while the driver's side piece was stuffed down in the fender compartment( It had either come loose or was never installed correctly). This foam keeps a lot of engine noise from entering the cab. It was a tight fit for my arm to re-install it. I had to get my wife to reach the very bottom.
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2001 2500 ETH/DEE Blk/Agate 4x4 QC LWB SLT+ 3. 54 LSD, Every option except Snow Plow and Cab Lights. ARE Z-Series Cap(lined) w/ intregrated electric lock. Bedrug Mopar Blk Aluminum Tube Steps 12000 lb Warn Winch/Transformer Mount- Brush Guard Factory Tow Hooks and all the right gear.
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2001 2500 ETH/DEE Blk/Agate 4x4 QC LWB SLT+ 3. 54 LSD, Every option except Snow Plow and Cab Lights. ARE Z-Series Cap(lined) w/ intregrated electric lock. Bedrug Mopar Blk Aluminum Tube Steps 12000 lb Warn Winch/Transformer Mount- Brush Guard Factory Tow Hooks and all the right gear.