I have an 09 limited with 102k miles and yes it rides very rough, suspension is fine, I was riding on etopia tires and now that I got Michelin defenders the ride is even rougher over potholes and the like, maybe I can take some air out of the tires, these ones are running on Nitrogen since they're Costco tires, not sure if that makes a difference, nothing is rattling it just makes a ton of noise when it hits an imperfection in the road, I'm used to luxury vehicles with air suspension