Don't take it to the dealer whatever you do when having it aligned. All they do is toe-n-go. Most techs won't even have the eccentric bolt for the rear to do the camber. They'll most likely be stumped as to what you're even talking about they're so stupid.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k