It is a big job but not difficult, drop the exhaust system, heat baffles, reinforcement plate, disconnect the driveshaft, disconnect the axle shafts at the hubs, disconnect the upper and lower control arms at the hubs, disconnect the rear sway bar at the control arms, get a jack under the diff and lower it down as a unit.
You need to get the dedicated tool for removal/install of the subframe bushings.