Hey everyone, new to the D series tractor. Have a 18 automatic. What is the name of the clutch for the tractor, can't find one online. Have a few issues. The transmission leaker behind the oil filter in what looks to be a pressed in cap. Don't know what to call it. Also when pushing stuff moving slow once the tractor is put under a load the speed lever jumps to full speed. I don't understand it. Want to learn as much as I can