You may contact us for automotive repair support by phone during working hours at 925-685-3575 For website issues please contact webmaster Map of 1410 Concord Ave Concord, CA 94520-4974   Directions to 1410 Concord Ave Concord, CA 94520-4974 service@diablotransmissions.com

Customer Service Our goal is to provide customer service that is so good it will surprise you! With that in mind, we offer the following online features: Feedback: Send a message directly to the owner of Diablo Transmissions. Comment upon your experience with us. Tell us what we did well and scold us if we failed in any detail. Your comments will be taken to heart. How we do business in the future will be based upon your input. Request A Quote: Online quotes. No haggling, no surprises, nothing hidden. Quick reply. Make an Appointment: Tell us when you can most conveniently bring us your car. Arrange towing or a rental car if necessary. Wholesale Accounts Register: Free registration for credentialed wholesale customers. Repair shops, fleet operators, and car dealers are eligible. Register for confidential pricing and on-the-spot delivery.