Loosen the rear wheel lug nuts, block the front wheels, and raise the rear of the vehicle. Support it securely on jackstands. Remove the rear wheels, drain the lubricant from the differential, disconnect the driveshaft from the rear differential, remove the rear exhaust pipe and muffler, pry the inner CV joint out of the differential just far enough to release the snap ring, support the rear of the differential with a floor jack, remove the mounting fasteners that attach the differential to the rear cross member, remove the four front mounting fasteners and bracket, carefully lower the differential enough to separate the drive axles from the differential, carefully lower the differential and remove it from under the vehicle, place the differential on the jack head and position it directly underneath the mounting bracket and cross member, raise the differential enough to install the driveaxles into the differential, raise the differential into position and install the rear mounting nuts loosely, then install the front mounting nuts, tighten all mounting fasteners securely, install the driveshaft, fill the differential with the type and amount of lubricant specified, install the wheels, remove the jack and lower the vehicle to the ground, and tighten the wheel lug nuts to the torque.