News Release

Allison Transmission Schedules First Quarter 2014 Results Conference Call

April 10, 2014 at 8:30 AM EDT

INDIANAPOLIS, April 10, 2014 /PRNewswire/ -- Allison Transmission Holdings Inc. (NYSE: ALSN), the largest global provider of commercial duty fully-automatic transmissions and hybrid-propulsion systems, will hold its first quarter 2014 results conference call at 8:00 a.m. ET on Thursday, April 17. Chairman, President and Chief Executive Officer Lawrence E. Dewey, and Executive Vice President and Chief Financial Officer David S. Graziosi will review the company's financial performance for the period.

Allison Transmission Inc. logo.

The dial-in phone number for the conference call is 1-877-407-9039 and the international dial-in number is 1-201-689-8470. The passcode for the call is 13580054. A live webcast of the conference call will also be available online at http://ir.allisontransmission.com. Additionally, the first quarter results press release will be available on the 'News Releases' page of the website.

For those unable to participate in the conference call, a replay will be available from 11:00 a.m. ET on April 17 until 11:59 p.m. ET on April 24. The replay dial-in phone number is 1-877-870-5176 and the international replay dial-in number is 1-858-384-5517. The replay passcode is 13580054.

About Allison Transmission
Allison Transmission (NYSE: ALSN) is the world's largest manufacturer of fully-automatic transmissions for medium- and heavy-duty commercial vehicles and hybrid-propulsion systems for city buses. Allison transmissions are used in a variety of applications including refuse, construction, fire, distribution, bus, motorhomes, defense and energy. Founded in 1915, the company is headquartered in Indianapolis, Indiana, USA and employs approximately 2,700 people worldwide. With a market presence in more than 80 countries, Allison has regional headquarters in the Netherlands, China and Brazil with manufacturing facilities in the U.S., Hungary and India.  Allison also has approximately 1,400 independent distributor and dealer locations worldwide. For more information, visit allisontransmission.com.

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SOURCE Allison Transmission Holdings Inc.

Investor Relations, ir@allisontransmission.com, 317-242-3078; or Media Relations, media@allisontransmission.com, 317-242-5000