Try cranking them back two or three turns and see if that helps the ride any. You will not lose much lift and it should help the ride alot. I know when I first lifted mine thre inches it was fine, then I turned it a couple more turs and it would beat you to death riding on hte road. So I turned them back and all is well.

As far as the boots, balljoints tie rods go it is like what was said. You are dealling with an older truck you are going to have to replace parts like that, that are aready wore out. I mean you didn't have to replace them more than once have you?

Later,
Daniel