Allison Transmission Holdings Inc. (NYSE: ALSN), a leading designer and manufacturer of vehicle propulsion solutions for commercial and defense vehicles, the largest global manufacturer of medium- and heavy-duty fully automatic transmissions, and a leader in electrified propulsion systems, today announced that it has rescheduled its third quarter 2021 financial results conference call to 5:00 p.m. ET on Wednesday, October 27, from 8:00 am ET on Thursday, October 28. Chairman and Chief Executive Officer David S. Graziosi and Senior Vice President, Chief Financial Officer and Treasurer G. Frederick Bohley will review the company's financial performance for the period. The news release announcing the financial results will be issued post market on Wednesday, October 27.

The dial-in phone number for the conference call is 1-877-425-9470 and the international dial-in number is 1-201-389-0878. A live webcast of the conference call will also be available online at http://ir.allisontransmission.com. Additionally, the third 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 8:00 p.m. ET on October 27 until 11:59 p.m. ET on November 3. The replay dial-in phone number is 1-844-512-2921 and the international replay dial-in number is 1-412-317-6671. The replay passcode is 13723297.

About Allison Transmission

Allison Transmission (NYSE: ALSN) is a leading designer and manufacturer of vehicle propulsion solutions for commercial and defense vehicles, the largest global manufacturer of medium- and heavy-duty fully automatic transmissions, and a leader in electrified propulsion systems that Improve the Way the World Works. Allison products are used in a wide variety of applications, including on-highway trucks (distribution, refuse, construction, fire and emergency), buses (school, transit and coach), motorhomes, off-highway vehicles and equipment (energy, mining and construction applications) and defense vehicles (tactical wheeled and tracked). Founded in 1915, the company is headquartered in Indianapolis, Indiana, USA. With a presence in more than 150 countries, Allison has regional headquarters in the Netherlands, China and Brazil, manufacturing facilities in the USA, Hungary and India, as well as global engineering resources, including electrification engineering centers in Indianapolis, Indiana, Auburn Hills, Michigan and London in the United Kingdom. Allison also has more than 1,400 independent distributor and dealer locations worldwide. For more information, visit allisontransmission.com.

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