Sorry for the late question but can you describe the vibration? Once it starts does it get worse with speed or does it remain the same? Keep in mind that we are driving these trucks at speeds that they we not designed to do initially. In my truck, in the rare times I get it up to speed, I develop a vibration around 55-60 but it then goes away past that. Every truck that I take up to speed does that. Looking at your photos you have a longer wheelbase than my truck so your vibration may just be a little higher like Charlie, our Stovebolt Flagship.
Keep in mind this truck is not ever going to ride like a modern truck with stock suspension.
