I have an 02 LT Suburban, 4wd with 130k on it. The ride had gotten hard recently, and I am looking for things to replace. The shocks are less than a year old, so I know it's not that. I am taking it in to have the ball joints looked at. I have the front and rear sway bar bushing and link kits from Energy Suspension on the way. With all that, I am trying to find information about the bump, or jounce, stops. How do you know if they need to be replaced. I went by the dealer and grabbed one to compare against one that is [on the truck and they appear to be in the same condition, though I find that hard to believe after 130k miles. Anybody here have any experience with them? Anything else I should check while I am at it?