[diggertodd]

I purchased a c-10 tilt column at a swap meet and have no idea what year it is, I know the steering wheel spline out of the column changed is size in 69 or 70 but I cannot find anywhere a sizing from the manufacturers (grant, etc) that gives the sizes, they just give the part# related to the year. The spline I have is 11/16 on the O.D. of the spline.

Any column experts out there can help me?