hi i recently replaced my diff it was farly easy you dont have to take the beam down dont even need to remove the rear wheels as long as the wheels are off the ground and hanging down the drive shafts clear the diff as well so it is a case of just un bolting it, bit more fidley putting one back in though getting the bolts back in not to bad though. pointers a good trolly jack if doing it on the floor to hold the diff & some good leaver bars.