There is lateral movement in the rear of the truck when the road changes so something is wrong. It should not be doing this
My driving position relative to the truck while following it has been accounted for. We drove on several roads of different types on more than one day. We swapped trucks a few times and my other truck drives perfect. I have been also looking at how other trucks track when I am driving places.
Your suggestion about the angle while following the truck is a very good one. Thanks for mentioning it.
I really appreciate all of the comments guys. Thank you very much.