TNTriumph, the hardest part is getting the pinion nut off after you down the drive shaft. Place two bolts back in the rear hub and put a crow bar braced against the frame, using the curved end of the bar will let you get at the nut with a socket. Be sure to use some good jack stands or better yet have it on a lift. The seal comes out with a seal puller or screw driver. You may have to drive the sides of the seal in, but not many take such effort. Wayne