INDIANAPOLIS, Aug. 27, 2012 /PRNewswire/ -- Allison Transmission Holdings, Inc. (NYSE: ALSN), the world's largest manufacturer of fully-automatic transmissions for medium- and heavy-duty commercial vehicles and hybrid-propulsion systems for city buses, today announced that it will present at the following investor conferences during September 2012: Bank of America Merrill Lynch Global Industrials ConferenceDate: Thursday, September 6, 2012Time: 11:00 – 11:40 A.M. ETPresenter: David S. Graziosi, Executive Vice President, Chief Financial Officer and Treasurer Morgan Stanley Industrials & Autos ConferenceDate: Thursday, September 13, 2012Time: 1:35 – 2:05 P.M. ETPresenters: Lawrence E. Dewey Chairman, President and Chief Executive Officer and David S. Graziosi, Executive Vice President, Chief Financial Officer and Treasurer Invest Indiana Equity ConferenceDate: Thursday, September 13, 2012Time: 9:00 – 9:35 A.M. ETPresenters: Fred Bohley, Executive Director, Finance and Melissa Sauer, Managing Director, Government and Community Relations The presentation materials and webcasts will be available on the Allison Transmission website at http://ir.allisontransmission.com/. A replay of the webcasts will remain available on the company's website for 90 days. (Logo: http://photos.prnewswire.com/prnh/20120702/DE33547LOGO ) About Allison Transmission Allison Transmission is the world's largest manufacturer of fully-automatic transmissions for medium- and heavy-duty commercial vehicles, medium- and heavy-tactical U.S. military vehicles and hybrid-propulsion systems for transit buses. Allison transmissions are used in a variety of applications including on-highway trucks (distribution, refuse, construction, fire and emergency), buses (primarily school and transit), motor homes, off-highway vehicles and equipment (primarily energy and mining) and military vehicles (wheeled and tracked). Founded in 1915, the Allison business is headquartered in Indianapolis, Indiana, U.S.A. and employs approximately 2,800 people. Allison has manufacturing facilities and customization centers located in China, The Netherlands, Brazil, India and Hungary, with a global presence, serving customers in North America, Europe, Asia, Australia, South America and Africa. Allison also has more than 1,500 independent distributor and dealer locations worldwide. More information about Allison is available at www.allisontransmission.com. SOURCE Allison Transmission Holdings, Inc.