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Poly isn't a good material for FCABs. Too many people who install them see premature failures soon after to ever make this recommendable.
Try putting in some fresh OEM ones first, and if that still isn't enough then look at some delrin ones or Turner monoball. As stated above OEM bushings don't last long so it's best to just change them (and RTAB) as a maintenance item every 25-30k mi if you want to maintain feel without adding NVH
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