Steering column question from a new member.

[HONDAWASAKI]

Is the '67 column a one year only? The lower spline shaft is HUGE compared to the replacement I sourced from a '69. I bought the truck with a custom vice grip steering wheel that ruined the steering wheel side of the shaft. The columns look very similar, just the lower shaft diameter is different. Should I go back and get the lower shaft? Or should I try to source a '67?

I searched, and could not come up with an answer. Thanks in advance.