Axle seal leak or something else on my Tahoe

[dan_erickson]

So about 4 months ago I was changing the front diff mounts on my 13 Tahoe and I unbolted the right front CV shaft from the diff at the 6 bolt flange. Oddly diff fluid starts leaking out of the flange that I had unbolted so a put it back together right away. Now today I did an oil change and noticed fluid slowly leaking and has been sprayed in that area. Now, I thought that 6 bolt flange would be a dry connection. If it is actually supposed to be wet that when I disturbed that sealing area it would make sense to leak now. Or do you think it’s the axle seal at the end of the diff housing?

 

[MParr]

Looks like the axle shaft seal is going out.

 

[dan_erickson]

Looks like the axle shaft seal is going out.

Well, that sucks. Looks like the passenger side is a job to replace.

 

[wlk]

Put an oz or two of ATP 205 or Lubegard reseal in the diff and see if it helps. I would try it before replacing as you stated the job sucks. I have used those in my diffs for minor leaks and it helps. If you don't like those put some liqui moly motor oil saver in it. I know folks hate these products here but for a diff I would try it, have nothing to lose if the seal is not torn.

 

[tblt44]

My Avalanche looks the same, they all leak.
Both sides of mine look like that