We have owned three shev silverado pick ups. two of them were extended cabs and the 2005 is a four door HD duramax silverado. Every one of them has had door whistling noise caused from air getting through the weather stripping. We have tried adjusting the dooor striker in which if you get it too tight causes the door to shut hard. There is no adjustment on the hinges as they are welded. They have tried using a 2x4 to pull down on the door with little success. Why they quit putting adjustable hinges is a question. I figured when buying the 4... read full review »