I saw a tailgate protector on an 05 yesterday. It looked pretty much the same as the factory one for a Chebby 1/2 ton, slight aerofoil look. It looked good. Anyone seen or heard of these?

 

I have Bushwaker bedrail & cap. Nice product, but not quite what your looking for. I know which one your talking about , i had a 2000 Silverado with the aero look. I liked it too. Check out http://www.bushwacker.com/search_bedrails.asp
Have a good one!