Good advice! Thank youHard to tell, but they don't look wet, so that's good. Having said that, it comes down to how they are performing. I would also want to see the bushings. Are they dried out? Is the shock a little loose?
Quick test for starters would be to bounce the corners. Push down on the corner you are worried about, and let go. It should rebound once, and stop. If it bounces a few times before settling down, then they need replacing.