how many bubble windshields are there, anyway? i have an obvious bubble w/s in my 64=k 2 dr h/t as versus a 64 = 300 2 dr h/t , i also have, that has a straight w/s, whats this about the bubble not fitting the 64 h/t body? is the 300=k somehow that isnt apparrent, different than the just 300?? the bubble w/s has been in the k for 18 yrs that i know of and it doesnt leak and fits just fine;; what gives..?? JEFF tucson az.