I'm facing some differential leaks from the rear differential yoke as the picture below shows








And in this picture below it will show a leak in the front yoke shift with the transfer case







And the last leak is in 4wheel shift in front as showen below





What is the sulotions to stop these leaks ??
Do I have to change the seals ??

 

ok.... lets start from the beginning.
the rear pinion seal needs replaced.
the front drive line "leak" is not a leak. its a grease spot. dont worry about it.

 

Then I'll change rear seal
Thanks a lot for the post

 

What about this one below ??

 

That looks like the rear output seal of a np231. Gotta drop the driveshaft anf then carefully pry the seal out and then press the new one in.

I just did this to mine, and I had to remove the aluminum cup/cone from the case and then pound out the seal from the inside of it. Before putting the cone back on, clean the mating surfaces on both sides and put a bit of RTV on it to form a gasket to keep it from leaking.

 

your questions have been answered. also make sure the vent on your xfer case is not obstructed and or broken.

off topic question: where were those pictures taken?

 

Photos taken on top of a sand mountain