I have an 86 K10, (sorry I know this is a blazer forum, so dont hate me yet) and I am considering replacing my spring and shackle bushings with greasable poly bushings from ORD. My issue is this, I live at the end of five miles of dirt road in a dusty climate. I would like to know if the dust will just "gum up" the greasable bushings, or if I should not worry about this at all. The truck is outfitted with a shackle flip rear, and swaybar disconnects, so the extra flex gained is not really an issue, I already have more than I will ever need for my kind of wheeling. I figured that the greasable bushings would provide a better ride and be longer lasting than standard poly bushings. Also, this truck is a daily driver. Any thoughts or input would be greatly appreciated.