Hesston 1010 moco

I just purchased an old Hesston 1010 hydroswing mower conditioner. When I bought it, I just looked at the rolls and noticed the rubber one still looked good. After I got it home and was servicing it, I found that the rubber and steel rolls did not mesh together. The ribs on the rolls are different widths and are twisted different directions. Has someone replaced one of the rolls or is that how this model is supposed to be?

Hesston 1010 moco