I am also in IL and have a 2013. The suspension is stiffer when cold. Mine doesn't bother me but, that is personal preference. It does smooth out when warmed up on mine. 3.0s may not fix how you feel about the truck. A lot of people do rave about improved ride on road with them. Sorry OP that you are not happy with the truck. Hopefully you are able to find a solution as this is the best truck out there IMO. Good luck
Sent from my DROID4 using Tapatalk 2
Sent from my DROID4 using Tapatalk 2