They diagnosed a problem I was having the first time I was in when I ended up being tight on cash and couldn't afford to have the whole transmission rebuilt. I went and purchased a used transmission and they only charged me for the labor. It started leaking after 5 or 6 days and it turned out to be the torque seal in the used transmission. They inspected the transmission and inspected it diligently to my time needs. I was getting ready to have an operation on my neck and had to leave town soon after this work, and they were able to fix my car in time.