As if you're on the tractor, look to the left where the gear shift is, and there should be plug right on top, a square hole should be in the plug to turn it out. For the hydro fluid, look on the left outside of the tractor. I believe there's an 8 sided plug there. Recommended to put in International transmission fluid which should be available at many auto supplies such as NAPA. They should also have an oil filter that will work. John