DR Trailer Sales is one of Michigan's largest trailer dealers,offering one of the largest stock selections and some of the best deals. Find the perfect trailer for sale at DR Trailer Sales. We stock hundreds of trailers including Enclosed Cargo, Dump, Equipment, Goosenecks, Motorcycle, Landscape, Race, Pontoon, Snowmobile, Horse, Stock, and More. DR Trailer pays top dollar on all TRADE INS. Located in Milan Michigan near Ann Arbor and Detroit, 2 exits north of Cabela's.