Allison Transmission's Fourth Quarter 2012 Results Conference Call Scheduled for February 19

 Allison Transmission's Fourth Quarter 2012 Results Conference Call Scheduled
                               for February 19

PR Newswire

INDIANAPOLIS, Feb. 5, 2013

INDIANAPOLIS, Feb. 5, 2013 /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, will hold its fourth quarter 2012
results conference call at 8:30 a.m. Eastern Time on Tuesday, February 19.
Lawrence E. Dewey, Chairman, President and Chief Executive Officer, and David
S. Graziosi, Executive Vice President and Chief Financial Officer, will review
the company's financial performance for the period.

(Logo: http://photos.prnewswire.com/prnh/20120702/DE33547LOGO )

The U.S. toll-free dial-in for the conference call is 1-888-364-3109 and the
international dial-in number is 1-719-457-2083. Passcode for the call is
4104359. A live webcast of the conference call will also be available on the
investor relations page of the Company's website at
http://ir.allisontransmission.com/. The press release announcing Allison
Transmission's fourth quarter and full year 2012 results will also be
available on the website under "Financial News Releases".

For those unable to participate in the conference call, a replay will be
available from 11:30 am Eastern Time on February 19, 2013 until 11:59 p.m.
Eastern Time on February 26, 2013. The U.S. toll-free replay dial-in number is
1-877-870-5176 and the international replay dial-in number is 1-858-384-5517.
Replay passcode is 4104359.

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.

Website: http://www.allisontransmission.com
Contact: Investor Relations, ir@allisontransmission.com, +1-317-242-3078, or
Media Relations, media@allisontransmission.com, +1-317-242-5000