So I have replaced the shocks, and the left guide rod, and tie rod.
Now I have a vibration at 40-45. does not matter if the car is accel, decel, or staying at the same speed. Does not matter on engine or trans as it will also do it coasting in neutral.

So how likely is it that this was there, and now with the front tightened it has shown up? Where do I look? it has had an alignment today. Still there....

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83 300SD Dark Silver Dark brown inside