Polyurethane Bushings

[silverado4800]

Anybody out there installed polyurethane bushings on a newer body style silverado? I have been thinking about putting a small lift on mine to get it off the ground and figured i could install them while i was already working on the suspension. Are there kits offered for our newer trucks or are they even needed. I know it sure feels like it needs them. Any info i would need to know about them? Thanks in advance.

[silverado4800]

anybody?

[bigdogs]

I did put some on a Blazer I had when it was lifted. One thing I can suggest is make sure you grease them as they squeak more than the rubber ones. They're used to be ones called poly-graphite which had graphite mixed into the poly when being molded and don't need to be greased.