Tilt column 79 and up

[chevak20]

Why did GM change the steering column from 1979 and up?
From 1973-78 it had a clamp around the shaft and from 1979 and up it had a bolt through it and a not a spline surface.

Is the 79 and newer better construction? Did the prior clamp style spin around on some vehicles when the wheel was turned?

The reason I ask is that I am putting in an older style in my 82 truck and I want to be safe. I can change the bottom shafts otherwise and make a mix 77/82 style steering column.