In fact the routes are the same untill Sivas and then split there.

Just inside the recreation area boundaries, the route splits in two.

The two routes split at the north end of the viaduct.

The two routes split up after running through Spavinaw.

The route continues east and splits into a one-way pair.

The two routes head west towards Bayard and split on the eastern side of town.

The two routes split at the eastern edge of the community.

The two routes split apart not far north from Winthrop.

Approximately a mile later, the two routes split shortly after entering Orange.

By that point, the route would have split into two branches.