Could very well be so. These pix are of 68 Dart rear quarter. Even the flat parts tend to curve a little bit (top to bottom) as they get near the tail light.
That flat near the bottom is less than 2" wide so when you're sanding, you're sanding peak on the upper side and a valley on the lower side.:realcrazy: I had to make a 2" block to fit the width, and that worked out well.
I'm fairly certain that manufacturing tolerances on these babies didn't allow for all of them to come off the line with the same flats, curves, etc.
Makes it all the more fun.:D
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