Abstract: In a row crop implement having an elongated tool bar, a steerable coulter disc, a row follower mechanism connected to the tool bar, and a device for steering the coulter disc in response to movement of the row follower mechanism, an apparatus for synchronizing the steering disc and row follower mechanism. A first mechanism is provided for moving the row follower mechanism to a neutral position corresponding to a transversely aligned position for the tool bar relative to the crop rows. A second mechanism is provided for disabling and enabling the steering device and a third mechanism is provided for steering the disc, while the steering device is disabled, to a position for straight ahead movement of the implement whereby upon enablement of the steering device, the row follower mechanism and coulter disc are disposed in synchronized relation.