Meet the Management Team

Our management team works hard to improve our owners’ lives — because they’ve been in your shoes

Jim Gregory, President & CEO

Jim joined American Driveline Systems in 2014 as he was passionate about the Company’s brand heritage and long-term growth opportunity in the automotive aftermarket.  Prior to joining ADS, Jim was a Principal investor at American Capital, a private equity and asset management company with over $20 billion in assets under management.  During his tenure at American Capital, Jim served on as a Board member for businesses across a variety of industries.  His experience includes controlling equity investments and successful exits in consumer, service, and manufacturing businesses, capital raising, new product development, geographical expansion and executive team building.


Mary Shetzline, CFO

Mary has served as American Driveline Systems’ CFO since October 2017.  From April 2014 to September 2017, she was Controller and a manager at ADS.  Previously, Mary was a financial manager at Globus Medical in Audubon, Pennsylvania, and was an auditor at Ernst & Young in Philadelphia, Pennsylvania.


Zach Peters, COO

Zach brings to AAMCO over 20 years of operations leadership, execution, training, and team building experience. He previously served in the Marine Special Operations Command (“MARSOC”) and most recently at Kattera, a global technology based vertically integrated construction business. While in MARSOC Zach served in many leadership roles including Operations Chief, Team Chief, and Reconnaissance Team Leader where he successfully built teams, executed critical operations in difficult and politically sensitive environments, and served as a key liaison with other DoD and Special Operations forced. Zach is the recipient of many awards including the Bronze Star, Combat Action Ribbon, and Force Recon Team Leader of the Year. After leaving MARSOC, Zach joined Kattera during a time of rapid growth from 700 to 7,000 employees. At Kattera, Zach successfully developed many operations, team building, and training initiatives.

Amy Johnson, CMO

Amy joined American Driveline Systems in 2019 with a deep respect for the brand and passion for supporting AAMCO franchisees. Growing up just north of Birmingham, Alabama on her family’s cattle farm, she saw first-hand the impact of small business owners on the life of the community. Having owned several small businesses herself, she has a strong drive to create opportunities for franchisees and deliver value for consumers. Prior to joining American Driveline Systems, Amy led Global Demand Generation for the world’s largest cybersecurity integrator. She has also worked in Finance for a $750 Billion global bank, Healthcare, Higher Education, and on the 300-acre family farm. One of her fondest memories is the old AAMCO hat her grandfather wore while teaching her to drive a tractor on the farm that she still visits frequently with her husband and their six children.

Adam Baumgardner, CIO

Adam joined American Driveline Systems in March 2019 as CIO. Adam has a deep technology background, demonstrated leadership ability, and expertise in Business Intelligence and Analytics. Prior to joining ADS, Adam worked at ConnectiveRx as VP of Product Management, Analytics.  He also spent over 10 years at inVentiv Health as a Director of Product Management and Director of Software Development.  Adam received his B.S. in Finance at King’s College and his M.S. in Information Science at Penn State University.

Bruce Chidsey, Vice President of Technical Services

Bruce joined AAMCO in September 2007 as Vice President of Technical Services and New Product Development. Prior to AAMCO, Bruce spent 27 years with Pep Boys Auto, most recently as the Corporate Vice President of Service Operations and Customer Relations. He brings a rare combination of technical and sales expertise with his current certifications as ASIA/ASE World Class Technician, Master Automotive, Master HD Truck, Master Engine Machinist, and Master Refinishing.

John Bethune, Dean of AAMCO University

John Bethune directs all training programs for AAMCO University since April 2017. He has been involved in automotive aftermarket businesses for over 30 years, including as an AAMCO Center franchisee from 1987 to 2008. After selling those businesses to successor franchisees, he remained in the industry and became Director of National Accounts for Transtar, a major aftermarket parts supplier, from 2008 to 2016. Earlier in his career, he was an educator in New Zealand and Australia.


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