My bad only the one hose. If you want to take the bracket off completely then yes the bolts that hold the bracket to the frame. Otherwise just slide it off the bracket and leave the bracket. Don't need to remove battery but you will have to take out the air box to make it easier. You don't need to drain the overflow tank. Remove the hose from where it connects to the radiator by the cap, but take a clamp of some sort and clamp it off first. Pics of the new coolant tank?