Chevrolet C60s - Front Wheel "shimmy"

[cordenj]

Thanks everyone for thoughts.

I've looked at my manual to get suggested solutions and specs,

One thing I am going to go through, and follow the sequence in the manual, is the steering box adjustment.

The truck has done relatively few miles in the 9 years since it was completely rebuilt, so doubt the bearings are worn out IF they were replaced or fully checked during the rebuild.