• Ray Warner

    Ray Warner is owner of Diablo Transmission in Concord, Calif., and has been in the transmission business for about 25 years. He is a member of both the Automatic Transmission Rebuilders Association (ATRA) and the Automotive Service Councils of California (ASC).
    Ray Warner
    Jan. 1, 2020
    This month's contributor points out that a customer?s first impressions of your shop have lasting effects.