1964.5 -'66: The original column has a solid shaft from inside the gearbox to the steering sheel. This shaft will need to be modified. A new coupler (included) will need to be put in place between the modified shaft and the column.
1966-'69: A rag joint (included) will need to be put between the steering column and the gearbox. This will act as a coupler as well as a vibration dampener.