transmission rebuild

Did you have it looked at by a transmission specialist? How many miles do you have on the vehicle? There are some cases where you don't need to replace the transmission (depending on the symptoms). It is best you take it to a reputable transmission "specialist" and have them fully diagnose the problem and have them give you an accurate estiamte. Most of the time if you are having slipping or shift changing problems it usually means replacement is probably needed. Again this isn't always the case and "specialist" will be the best one to determine that for you.