Re: Panel guys, I’d like to quiet down the back…
My panel had no insulation, but was quiet? Maybe because it's 2wd.
I assume you're going to make some kind of a side panel to hide the insulation/sound barrier. It's a big area to fill between upright structure and panel face, 3-4". Be sure you still have the pads between outer body panel and uprights (barely visible in my pic). You could get real crazy and use a 3" blue foam board.
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