U-joint on steering shaft: float or bolt down?

Those old Chrysler engineers were pretty smart fellers, I`ll never fix what ain`t broke.
I did use u-joints on my car I engineered. The barracuda will be left alone.
Funny, my 67 uses a small tapered pin to hold the shoes in the coupler. I need to reinstall that some day:)
That's the pin that came out and put the car in the ditch.