Ok, I finally got the chance to look at my truck. Been working like crazy!

The leak is coming from where the red arrow is.

The gears seems ok. Nothing looks chipped nor damaged but I did find a half inch piece of metal in there along with an inch full of oil.

 

http://i1354.photobucket.com/albums/...ps81e25364.jpg

http://i1354.photobucket.com/albums/...pscf0109e3.jpg

http://i1354.photobucket.com/albums/...psfcde45e8.jpg

http://i1354.photobucket.com/albums/...pse2736e0b.jpg

Where could the whine be coming from? Are there any special tools needed to change the pinion seal?

 

Is it just me or do some of the ring teeth look pointy on the edge?


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Is that a traclok? If you found a piece of metal could be a retaining clip or part of a clutch pack or Belleville spring


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i didnt see any clutch packs in there so it likely is NOT a trac lock.

if you only had an inch of oil in the bottom it was WAYYY low, fill it back up (replace the seal first if possible) and see if the whine goes away, it could just be from low oil in the diff.

 

Sounds like carrier bearings to me. I suggest a complete rebuild and install, ouch!

 

Do anyone know the size of the nut behind the drive shaft holding the pinion seal in place?

 

The nut size is 1 1/4 inch.