TK9

I just purchased a 2015 Suburban LTZ with 29,000 miles (one owner, dealer serviced). Everything is in pristine condition with the exception of the MRC.. I read so many conflicting forum posts and would like your advice on how I can make the ride "softer", I'm a mellow driver and value ride comfort above all. On the highway or over newly paved roads, the experience is great! The issue is over train tracks and other road imperfections.. it sounds and feels pretty bad.