I have my grandfather's '53 1/2 long bed, original exterior color was Twilight Blue, PPG code 10162 which is still a good code with PPG. I'm having difficulty 1) determining the waist strip and wheel strip color and 2) offset (current matching) paint code. I'm guessing when I say the proper accent color is Polar Gray [old & obsolete code is 30118]. For GMC in '53 there appears to be only a couple usable colors for the trim (badges, grill, strips, trim piece on hood) Polar Gray and Sea Bubble Gray. Polar Gray looks best! Need help.