we will find the best used transmissions for sale in your area, BEST Motors provides customers across the country with the best way to find used transmissions for reasonable prices. Since we can match you with a variety of competing brokers, you can choose the price that’s right for you. Used Transmission Shifter. Our parts suppliers have ethical standards that must be followed so you know you are getting what you paid for. Used motors ship directly to your home or a car mechanic near you for installation.