Tommy here'* a link where you can Enter the Year of your car and model. To compare it with other cars and it will give you those stats.

http://www.theautochannel.com/newcar...7&trimid=14888

I have poly on both of my Bonnevilles, never greased, never squeak. If you do lube them, make sure the lube you use is safe for use with polyurethane. A pure-silicone lube would probably be safest.

The bushings that squeak are the ones that wrap around the sway bar, so when the bar rotates inside them, they squeak. I don't mean the end links.

I had great results with poly bushings by wrapping my sways with about 5-6 wraps of Teflon tape. I lubed the bushings with the prelube as well. Going on three years with my GTP and no squeeks..no re-lubing. I'll be doing the same thing with the Bonne.