Maybe go with a new set of tires and a good 4 wheel alignment. Balance of tire important but more importantly could any of the rims be out of round which no matter what will cause vibration.3000 rpm vibration is or was the motor mount. Disclaimer....Educated guess made from person who has driven down the same vibration road you are on. I dont think the tires are the culprit unless balanced incorectly but I think you said tires are do, so..... maybe start there, before control arms.Good Luck
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