I'd say you're pushing your luck with that wheelbase. It's been a long time since I did that trail, so it's not clear in my memory. Someone else will know better. But I do know an Isuzu Rodeo, Land Cruiser FJ80, and other shorter vehicles that recently did Black Bear. They said it's technically no more difficult than a "6" on the 10 scale. I also overheard them joking about 20-point turns, and you better not be afraid of heights. I don't know how many point-turns they actually had to make. I heard that some people (not on that trip) with long wheelbases may need to back down to the next switchback in one or two places.