I agree with Chetman and kudos to him for bringing it up in this post. I did the same thing here:
http://67-72chevytrucks.com/vboard/showthread.php?t=415655The step side fender wheel well opening lip looks nothing like the front wheel well lip. Miserable, not even close.
Now, that being said, the step side beds are truly a great design.
I just don't understand why they didn't design the "new" 1960 fender wheel well lip to match the "old" 55-59 stepside design.