There is a black 08 6.4L crew cab, short bed dually running around my area. Like said before the other two I've seen around here are both white. One's a 6.0L & the other is an 01 7.3L crew short. I also remember seeing a white cab & a half (super-cab) short bed 7.3L dually. It was one rather odd looking truck, only one I've seen like it.