I'm about to do the ball joints on my SC Auto and was wondering whether to replace the lower link bushes with rubber or poly while I have the struts out. The car is not a performance machine so I'd prefer a quiter ride over a stiffer one. Do the poly bushes typically have a tendancy to squeek? Also, what other rubber parts should I consider doing while I'm at it? I was not thinking of doing the top link bushes until I strip the car to paint it next yr.