Polyurethane bushings.

I just read this article http://www.quickorsuspension.com/articles/polybush.htm about poly bushings, and would like someone with first-hand knowledge to comment. Did you use graphite-impregnated bushings? Have you used them long enough to know if they last? If you use standard poly bushings, what kind of grease did you use and do you have zerk fittings. Ultimately, did they last and do they squeek? It wasn't to confusing to me until I found this article, but you never know if it's BS or not. Thanks all!

I just put the stock upper and lower control arm bushings in my 64 because I dont want the squeak. I did order from Summitt the Energy Suspension stabilizer link kit and everything for the rear because I want to tighten up the rear suspension. I have this kit in front of me and it comes with a prelube that looks like vaseline. I will install it just like they say and pray that it doesn't squeak.If it does it will be time and money wasted,because it's coming back out.