I know there's a bunch on here about windshields but nothing totally explains my question. What makes the windshield so special that Safelite will charge $860 to replace it with the "harley" windshield but only $240 for a "regular" f-150 windshield? I know it has the HD/Ford Alliance logo in the bottom center but is that it? Is that logo really what makes this windshield $600 more than a normal windshield? And is it that imperative that I have the Harley windshield put on if I replace my current one? It has two major cracks in it so it needs to be replaced regardless.