BRT Transmissions utilizes top quality parts. We do not cut corners! We use parts from reputable vendors that serve the Transmission rebuild industry. For instance: BorgWarner, AcDelco, Sonnex, Superior, and Transgo just to name a few. We also specialize in offering kits to install 700R4's and 4L60E's into cars that did not come with them. So if you are needing to install an overdrive 700R4 Transmission or 4L60E Transmission into your Ride or any other Overdrive drop us an email at tech@builtrighttransmission.com .