Steering column spline count/size

[69427]

I'm rounding up u-joints and shaft parts to connect my stock '69 column to the C4 rack in the car. I need to know the spline size at the bottom of the column.

Thanks a bunch,
Mike

 

[Twin_Turbo]

1" 48 splines

 

[69427]

1" 48 splines

Thank you!