I stopped at the H2 era so skid marks won't be in my modeling era! As much as I would like to stay modern, I would have to file for bankruptcy or a stimulus package. I believe 9300-9350 had nose headlights and 9350-9399 had high headlights. There were at least 2 types of number boards as well(blk on wht and wht on black. Don't quote me on that. Hope they do them all. dave