Some places have a system that flushes out the torque conveerter and everything, not just the pan as it is when you just drop the pan. The process usees about 15 quarts of fluid instead of the 4-6 that you probably used in your flush. Obviously thias works much better and is somethiing that can only be done if you have the machine. Really is still expensive. I could see 60 - 80, but over that I would look around.