Specialty vehicle manufacturer Oshkosh Corp. has maintained solid credit measures over the past year through a combination of financial discipline and good growth in its nondefense businesses. We are raising our ratings on Oshkosh, including the corporate credit rating to 'BB+' from 'BB'. The stable outlook reflects Oshkosh's prudent financial policy, which we believe offsets the risks associated with its highly cyclical nondefense businesses and our expectation that its defense business will become a smaller portion of the overall company. NEW YORK (Standard&Poor's) Dec. 18, 2013--Standard&Poor's Ratings Services said today that it raised its ratings on Oshkosh, Wis.-based Oshkosh Corp., including the corporate credit rating to 'BB+' from 'BB'. The rating outlook is stable. "The upgrade