I changed mine today, the only special tool needed was snap-ring pliars. It was real easy, I dissasembled the hub assembly, popped the axle out of the rotor, cut the old inner boot off, my buddy accidentally yanked the axle out of the cup that goes into the transmission, luckily. It was easy as pie, we removed the snap ring from the end of the shaft, removed the bearings, replaced the boot, reattached the bearings, slid the assembly back into the cup, and tightened down the clamps. We also filled everything with grease

It went much easier than I thought after we got in there and got dirty. I would highly suggest rubber gloves for this project.