ATRA - the Automatic Transmission Rebuilders Association - is an international trade association for the professional automatic transmission repair industry.Founded in 1978, Sonnax has become a leading supplier to the automotive aftermarket. The company designs, manufactures and distributes replacement components for automatic transmissions, torque converters, drive shafts and related products worldwide.Transtar Industries, Inc, headquartered in Cleveland, Ohio, is the leading aftermarket transmission parts supplier to the automotive repair industry. Transtar has over 60 locations in the US, Puerto Rico, and Canada, and an international division that serves more than 70 countries around the globe.Southington Transmission & Auto Repair welcomes you to our Southington automatic transmission repair shop website. Each transmission technician at our automatic transmission repair shop in Southington is highly qualified and ready to deliver their expert automotive transmission repair technician knowledge & skills for your every automatic transmission repair need.Our automatic transmission shop is proud to be affiliated with the non-profit organization known as the Automatic Transmission Rebuilder Association ( ATRA ). As an ATRA member our automatic transmission repair shop adheres to the service and repair definitions which are a part of the ATRA bylaws and code of ethics.Southington Transmission & Auto Repair pledges to all of our customers that we will not remove a transmission from a vehicle in order to complete a repair unless absolutely necessary. Additionally our shop promises to diagnose transmission problems for all of our local and surrounding area customers in an honest and expert manner. Our shop strives to provide prompt and courteous service to all who visit our automotive transmission repair facility in the hope that you will come back to us for all of your automotive automatic transmission repair needs.. FREE TRANSMISSION CHECK,BRAKE INSPECTION,FREE CHAECK ENGINE. A/C REPAIR OM & CUSTOM EXHAUST TUNE UPS & OIL CHANGE-TOWING AVAILABLE