Axle seal replacement
One side is easy. The side with the center axle disconnect. The seal is located on the outside end of the axle tube right behind the universal joint. Other side is a real bear. You have to pull the differential carrier out remove the axle shaft and then the seal is located inside the axle tube just outboard the outer carrier bearing. Getting the new one in straight is the trick. The proper size seal installer really helps. You can do it, but its not a quick job. I wouldn't start the job with out a service manual. Ken Irwin