Kiley is right. Get that part and some of the steeda balljoints and call it a day. Your rear is more solid now than the irs. I belive the irs was cushioning the problem and with the irs gone you notice it. I believe it is because your are lowered. My red truck and black truck did/does the very same thing. Red truck was bagged and I rode low. But once the front end was raised to factory height it was fine. Black truck does it because it is lowered and the skinnies don't help either.
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