The ratings on Oshkosh, Wis.-based Oshkosh Corp. reflect the company's highly leveraged financial profile, which more than offsets its leading business positions in key segments of the specialty vehicle market and good product and end-market diversity. Oshkosh is a leading designer, manufacturer, and marketer of a broad range of specialty commercial, fire and emergency, and military vehicles. The company maintains leadership positions in heavy-duty rescue vehicles, severe-duty tactical trucks, custom and commercial pumpers, severe-duty plow and snow removal vehicles, concrete mixers, refuse truck bodies, and tow trucks. It is also the world's largest aerial work platform (AWP) manufacturer. As a result of the JLG acquisition in late 2006, Oshkosh expanded its product, end-market, and geographic diversity. The company generated revenue