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Click on image for the lowdown. 
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Mod | | | Forums66 Topics128,090 Posts1,056,020 Members48,430 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | As Alvin posted, POR is tough.
That is what I have under the fenders of my trucks.
However, if you have a lot of gravel roads (and/or gravel that makes its way onto the roads), an additional layer of a rubber compound may add a greater degree of protection.
There is not much gravel up here in NY, but I am moving to NC and I hear the gravel when I drive down there. I might be adding a rubber-like undercoat to my Suburban (and to my other trucks that are not yet road-worthy). | | |
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