Well to be fair vibrations and shimmys usually do come from unbalanced tires and I suspect it would exaggerate the wind effect. Playing around with different tire pressures can help. I notice it less with heavy E-rated tires. There's probably all kinds of factors like how much weight is in the back, sway bars, panhard bar, lift height creating more updraft, suspension stiffness, etc that amplifies it. On my 3rd gen I actually changed the steering rack guide/spring/torque to tighten up the steering a bit and it feels like a BMW now compared to the 5th gen. In fact I much prefer driving the 3rd gen from how it handles. Also have poly rack bushings. I wouldn't screw with it on a new one though.
yes but none of those are related to me .. i started this thread saying this is a brand new stock venture (with the large roofrack and i suspected its the wind from the start .but didnt drive it long enough to know for sure until the other day.