Have had good luck with Pinckney Dodge on M-36 in Pinckney, probably a 45-60 minute drive for you.
Never had warranty work turned down, never hassled, quick service.
Also heard that Saline Dodge in Saline has a good reputation. Havent had any work done there though. They always have the parts I need though.
Hope this helps,
J-
Also TDR Member Rob Thomas has a shop in Waterford, Mi, Michigan Diesel Performance. Good guy, good work and good prices. His shop would be about 2 hours from you though. Waterford is one of those places that " you cant get there from here", no straight shot route. It takes me about 1. 25 hours with traffic from Ypsilanti, but worth it in my opinion.