Our dealership sublets transmission work out to Transmission World. We initially used their service on a couple of cars when we needed some transmission work done, and they were really good. They are fast, they do good work, and it is cost-effective.
When we had one small issue, they took care of it in a matter of minutes. The owner, Mike, is very involved, which I appreciate. He is always at the shop, answering phones and working with clients.