Welcome to Duffy''s Autos. Since 1973 we have been dedicated to our customers in servicing their vehicles and buying quality used vehicles. Be sure to visit our virtual showroom of inventory available for purchase. There you will see detailed information about each vehicle, a picture gallery, as well as convenient ways to contact us for more information about that vehicle. We also specialize in custom car buying. Tell us what you are looking for and we will do our best to find it for you! Our full service shop has a great reputation of quality and affordable repairs. We are located at 700 South Illinois Street (Hwy 159) and are available by phone at 618-277-4021 . You can also get driving directions and hours of service from our user friendly website.