Ford 2000 3 cyl. Diesel

I have fluid leaking down my right rear tire. I have removed the tire and eight more nuts from the inner studs.What else do I need to remove to get to what I suppose is a seal leaking, I also need to replace brakes. I have not ever had any since buying the tractor 11 years ago. Been lucky but not feeing it now! Just not sure what has to come off and in what order. Any help is appreciated, and Thanks.