Jim,,you (as usual)missed the point, reader does not know what he is doing, is a pinion seal where one should learn (y) (n) simple.
If Y, beware of what it could cost or hurt if done wrong.

(Jim you are suggesting that it is 100% impossible to screw this up...that is you. I'm suggesting that it is 60% that he can replace the seal with no trouble...It is however, that 40% that makes worry.

Don't assume everyone has the tools and ability and most of all the deep pockets to re-repair it or what ever repair cost might occur because of a bad repair.

Having a pro do repair work can and does everyday, save folks lots of money.

SD