Transgo TF2 on a 904 is not shifting

Does your Jeep converter have a ring gear on it? The reason I ask, the spline count can be different. Also, look at the body of the converter and there should be typically 3 numbers stamped into it. If you can get me those, I can tell you more about the converter.
They are on the back of it? Or do I have to take it off?