Jay Dufur

My 1997 Subaru Legacy Outback has a problem with the rear tires wearing badly on the inside. I took it to a non-Subaru dealer with a computerized alignment machine. They told me the rear wheels could not be brought into spec. I needed an aftermarket kit that was not available from a dealer. I called my old dealer and he told me that was not true, just soak and loosen the bolts and it can be adjusted. Who is telling the truth and or what is this kit I need? In the meantime this is costing me a fortune in new tires. Thanks