We almost all have that problem here at the East Coast (sqeekying) that is an another reason why I asked earlyer how other guys clean this buggy . Specially after a few qual the whole buggy making that noise ... I have been run the mbx5r for two years I had no problem with that neder with other brands... Absolutely not bushings Mugen I (we)just looking for solution how to keep it in good shape!please don't take it the wrong way!mbx6 is the best buggy on the market in my book that is why I came back to Mugen ....