2007 Seminar Bios of Speakers

2007 Seminar Bios of Speakers

Image Tim Coppock s the Director of Testing and aterials at LuK USA. Mr. Coppock has been with LuK since 1991, prior to which time he worked in testing and research for over 14 years at the Firestone Tire Company. He is currently involved with the development of a torque converter durability test, a shutter prediction test, and torque converter fuel economy measurement. Mr. Coppock has a BS in Aeronautical & Astronautical Engineering from Purdue University.





Image Ed Lee is a Sonnax Technical Specialist who focuses on issues of interest to torque converter rebuilders. He was the owner/operator of Deltrans Inc. transmission shop for more than 20 years before joining Sonnax full time in 2005. He is a charter member of the TASC Force (Technical Automotive Specialties Committee), a group of recognized industry technical specialists, transmission rebuilders and Sonnax Industries Inc. technicians. In 1997 Ed started the popular TASC Force Tech Tips column that runs each month on Transmission Digest, and has now launched the TC Tech Tips column that appears monthly as well.




Image Chris Horbach Chief Application Engineer for Raybestos Powertrain and Allomatic Products Company, Years with Raybestos Powertrain: 11

Responsible for:

  • Technical Support for the Customers, Builders, and within Raytech Corporation itself
  • Product Development


  • Engine/Transmission/Transfer Case assembly/rebuilding/modifying
  • Motorsports (NHRA, NMCA, NDRA, NASCAR, F1)
  • Restorations/Street Rods




Image Marc McGrath is Vice-President of Technical Product Development for LuK USA and is also Product Line Leader for Torque Converters globally. He has a BSME from the University of Akron and 18 years experience in automotive product development; including design, testing, simulation and program management. Mr. McGrath’s various teams design, develop and produce torque converters, manual clutches, and other transmission components; as well as providing calculation and simulation, testing and advanced development resources to they.





Image Don Randolph is the Product Manager for Dacco Transmission parts and a member of the Board of Directors of the TCRA. Don has been involved in the automotive repair industry for more than 40 years. He began his transmission rebuilding experience at an early age following in his father’s footsteps at a Ford dealership. Don was taught transmission rebuilding, automatic and standard, engine repair and rebuilding, and devoted his evenings to aircraft and aircraft engine repair. Following his college graduation, Don taught Math and English to a local high school soon to join Dacco Converters as the Quality Control Manager in 1979. Since that time he has also enjoyed producing the Dacco Converter Catalogs, presenting more than 500 torque converter specific technical seminars at local and national events including ATRA, APRA, ATSG and others, filling a position as purchasing manager and continues to be involved in the Customer Service Dept. and Technical Information Dept. In 2003 Don moved into the position of Product Manager. Since joining the TCRA Board of Directors 3 years ago, Don has been heavily involved in the annual seminars, speaker scheduling and tours.







Image Joe Rivera has been a presenter at several torque converter seminars as well as a contributor to the trade publications. He is the President of TCRA board of directors and he is the driving force behind the website where his primary goal is for the TCRA to improve relations between the torque converter and transmission industry. The mantra is “Education through Improved communication”. His shop, ProTorque, is located on Long Island, NY








Image Mike Souza has been in the transmission industry for 25 years, the last four with ATSG. Although spending most of his career with Aamco Transmissions he has also served as a technical advisor for such companies as SPX Filtran. A member of TRNi, iATN and a contributing member of the Sonnax Tasc Force.





Image Bob Warnke is Sonnax Technical Director, and brings extensive industry experience to his job. He has worked as a GM and Ford dealership transmission technician, owned and operated his own shop for 8 years, spent 4 years as a technical educator and as a Helpline technician for ATRA, and served as technical director for a large transmission remanufacturer for 5 years. He is a key member of the TASC Force (Technical Automotive Specialties Committee), a group of recognized industry technical specialists, transmission rebuilders and Sonnax Industries Inc. technicians, working to translate rebuilder problems into innovative and low-cost solutions. He has been providing the industry with technical information in the form of seminars and technical articles for 15 years.