We were there- at Klondyke Cherry farm right on top of the mountain about a year ago and wanted to travel that way but was advised that the last part on the Citrusdal side was a no-go for caravans. I got the impression that that was the normal condition of the road. Perhaps someone has more recent info.
Johan, do supply info on your vehicles on your profile- it makes it so much easier to advise if you have that information. Same goes for other members.