You could also get yourself some gutter extenders made by camco. I see some wal marts are now carrying them. They did alot to help cut down the black streaks. Also, be sure to wipe out your gutters. Lots of goo can build up in there and when they overflow, water flows down the side and this also promotes black streaks.
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Traded IN 19BH......;-( Miss It!
:cool: 2013 F150 STX Super Cab With Factory Tow Package, Inegrated Trailer Brake Control, 5.0 Liter with 3.55 Gears and Posi Traction :cool:
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