I can tell you what I did to my 06, get the latest drag link/tie rod setup from Mopar. It's bigger and heavier than the previous 3 upgrades. Adjust your steering box to take any play out of it. I installed a Super Lift dual steering damper set up and aligned the front end to get 4-6 degrees positive caster. Also check the panhard bar bushings and make sure the bolts are super tight.

Are your tires in good shape? Because they can contribute to it as well.