Perched along a busy section of I-78 running through the Lehigh Valley region of Pennsylvania, Midway Salvage and its subsidiary Midway Used Trucks & Trailer Service (locally known as "M.U.T.T.S.") offer a growing rarity in the trucking business: a "boneyard" of highway tractors, medium-duty units, engines, transmissions, and assorted scrap components that can perused and bought to help keep older model vehicles up and running.