I ordered the FSM this morning but it does not help me at the moment. Under the FJ62 there are some (two?) hard lines that run close to the transfer case and rear drive shaft. These lines have a U shaped hose in them. One of my hoses is leaking. What are these lines/hoses for and how difficult is it to replace the hose? I can not really get under the truck right now to see what kind of fluid is leaking as I'm in my monkey suit. Thansk for the help.