I am new to this site this morning because I have multiple issues with my recently purchased 2006 Ram 1500 SLT 4x4. I noticed your post about Wobble/vibration issue. I have the same problem with mine. I first started by installing brand new Michelin LTX 20" tires all around. The truck did need new tires. Problem is still there. Then I proceeded to have the front coil over shocks replaced. The old ones were fine no leeks, no signs of wear. Problem is still there. I even put a bed cap made by A.R.E. not to fix the problem but just cause I needed one. Problem is still there.
I have yet to change the steering box do to lack of funds and the need to fix a transmission shutter I have at 1000rpms.
Did the rear shocks help after this amount of time? or do you, like me ignore it due to frustration.