904 tranny problems

Yes. Then remove the valve body. Have you done that before? Nothing to watch out for there except a spring or blocker rod might come out of the accumulator. Just take it down slow and you'll see how it goes back in. I always like to remove the valve body before I drop the trans; or at least loosen the ten bolts and that will drain the converter about 2/3. Before you remove the front bolts that hold the pump in, pull in and out on the input shaft and get some idea of how much it moves in and out. It would probably be easier to not remove the vb completely until the trans is out; cuz the park rod can sometimes be stubborn...all whilst fluid is dripping down your arms..
Use to getting dirty all the way up to my arm pits and beyond. lol;