I mean what do you recommand me to do, take care of, observe .... etc. during this ??

 

I assume you are talking about your rear main seal. Just did mine but my engine was out of car. Had a real hard time removing the upper seal. Directions say "push seal out". I finally had to take a 1/2" brass punch, cut the tip down so that I had a blunt tip on one edge of punch. Then just to be sure it would work, cause I had struggled with this, I loosened all of my main bearing caps but not removed them. Then I wacked one side of seal with my punch and a 3 pound sledge. Didn't move, so hit the other side. It finally pushed it enough to pull it out with needle nose. Discovered it was bonded with some sort of gasket/permatex holding it in. Good luck.

 

thanks, could you pliz provide some photos of the drive shaft oil seal ?? because I'm confused with it and what I mean is the one at the front of the car, and there's an engine oil leak there

 

http://jeepin.com/features/rearmain

read this article

 

many thanks

 

Are you talking about the rear mail seal or the diff pinion seal?

 

I think he is talking about the RMS in which case Javatrooper is spot on.

 

"you’ll want to jack up the vehicle by the frame"

I see the guys at Jeepin.com really know their Cherokee's.

 

mmmm, the one in the front

 

well guys if you look at the picture he included you can see the leak on the front diff, right at the yoke there. So im going to go with the pinion seal needs to be replaced not the rear main...I've never replaced one so I have no tips on it but hopefully someone else will chime in.