Our shop located in San Antonio, provides the latest and greatest transmission testing tools to determine your transmission problem. Automatic transmissions have evolved dramatically in the last 20 years. They have improved the way they operate with revolutionary electronics, on board computers and software. What this means to you is, your vehicle is best serviced by Gerald Kosub Transmission Service Inc in San Antonio, a company that stays up to date with cutting edge technology and repair information. Electrical diagnosis is a necessity when properly fixing a transmission problem. We have all the specialty equipment in our shop needed to perform your transmission repair or re-build. We stock all parts we need for our most popular cars and trucks.