Ok I gave it some thought... With the information I got from you guys so far I think I would be able to do this seal change on my own.
However, with all this talk about crush sleeves and pre-loads there are a couple of factors here!
First, this seal has been changed a couple of years ago during one of my trips to Jordan. Anyway I didn't know the mechanic who changed it. I was travelling therefore it was an emergency fix so I don't really know if the new seal he used was ok or not and I also don't know if he put everything back correctly.
Now... Should I just go ahead with the change myself regardless of how tight/loose everything is currently. Or should I just take it to my mechanic and have him check everything while he is at it?
And while he is doing it I figured I would be a big PITA ti him and ask lots of questions to learn how to do it next time myself
You know what? forget about it... I am the kind of person who likes to learn from my own mistakes... I'm gonna do it myself next weekend
What's the worst thing that could happen???
Thank you all for being so helpfull