Well the mechanic I took it to said that he wouldn't fail it, but he didn't seem too sure what was causing the problem. He said it was a normal "Chevy shake".... That's not good enough for me though. The suspension place they sent it to adjusted the alignment, and adjusted the camber/caster and toe. Centered the steering, and adjusted the steering box. They also said the shocks were weak.
Could the shocks cause this much vibration?
What they did improved the problem, but it is still there. He felt the movement in the upper drag link, but said it wasn't that big of a deal, yet the problem is still there? If the shocks were weak, would it cause the truck to feel like it would bounce off the road if you didn't slow down?