Serving San Marcos and North San Diego County since 1983. Metro Transmission not only specializes in transmissions, transfer cases and differentials, but we are a complete automotive repair center. Whether you need a basic oil change, brakes or a timing belt, we do it all! We also install clutches, axles, u-joints, external transmission Serving San Marcos and North San Diego County since 1983. Metro Transmission not only specializes in transmissions, transfer cases and differentials, but we are a complete automotive repair center. Whether you need a basic oil change, brakes or a timing belt, we do it all! We also install clutches, axles, u-joints, external transmission coolers and more! ...more