Does anybody know what the stock springrates are on a W210 sedan? I'm getting pretty tired of my dually pickup having better ride quality and less roll and want to see what the stock rates are. My car has new OEM Sachs dampers on it as of about a year ago and it just rides like **** and rolls around like a Buick. I have a spare set of stock springs here I can send off to get measured, but thats probably ~$100+ I'd rather not spend if I don't need to.