Quote:
Originally Posted by LILRED66
This rust occurs primarily because of the seam seal at the drip rail around the top of the cab perimeter. Check there first to ensure it is sealed up good. You will need to remove the winshield, repair and rust-proof the damage and install a new windshield gasket. When the water gets into the cavity above the windshield it will run along the top to the "A" pillars and down along the seam above the dash and down into to the kick panels and lower "A" pillars, leaving rust along the way.
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That's more than likely why the piece above the windshield has rusted. The piece on the right side below the windshield is because of the hole in the seal as you can see from the picture. I know it's going to cost me alot to get those two spots of rust fixed.
