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Service Information
Appointments
Nobody Knows Your GM Vehicle Better Than Goodwrench
Our technicians are GM-trained and we're there for all your service needs - whenever or however you need them. Trust us with the maintenance of your new or pre-owned GM vehicle, from regular inspections and safety checks to tires, brakes and more.

We have the expertise, technology and convenient hours you're looking for in GM vehicle service!
Parts
Not All Auto Parts Are Equal
If you're after the best performance and reliability possible for your GM vehicle, you want genuine GM Parts & Accessories. And we've got them. Goodwrench is the only service provider that can offer you parts designed and tested specifically for GM vehicles.
Harbor Chevrolet Cadillac
3502 E Michigan Blvd
Michigan City, IN 46360
Rich Adrian: Internet Sales Manager 219-879-5411
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Internet Sales Department: (219) 210-4254
Email: Contact Us
Fax: (219) 873-0793
Rich Adrian: (219) 879-5411
Service, Bodyshop, Parts: (219) 879-5411