I think I posted these somwhere else as well, but I'll post 'em here again as it seems appropriate:
I put this ruf btr bumper on my 88 930 cab with a 964 smile. The smile fit so well without any cutting or trimming that I could have sworn it was built specifically for this mod.
I'm also still trying to find a way to get a good solid one-piece rubber seal all away around the top of my rear bumper cap.