As my 04. 5 is in Lemon Law, I drove 2 05's, a 2500 with a bad vibration at 65 and a 3500 with NO vibes but a pretty bad pull to the right. 2 of my friends have 05's with no issues, like my 04. 5, they get 17 around town, unloaded, no vibes, no smoke. Go figure. Drive it before you hand over any money.
Wayne