Differential seal question

[Hammerhead]

(05-26-2018 )Rawze Wrote:  I wonder what caused the leak to start with?.
Abuse?
Age?
overheat?
road debris?

that is what would concern me first.

(05-26-2018 )Brock Wrote:  Abuse I am sure, these are 69,000lbs axles on a monster of a truck and this thing gets beat up pretty bad. It is often pulling hard out of mud holes with 6 way lockers engaged or in winter locked up climbing hills at high speeds.

Trucks a 06 and I've owned it for a year with no prior history so I am not sure on the age of the diff or seal but it's just the cost of doing business out here.

That's just tri-drive life Rawze. The things some of these off road work guys do would make most guys heads spin.
It's also a product of torque load time, my front one is starting to do the same thing.
Hard work realities.

Drain the oil Brock, and you have no choice but to pull the axles. Loosen but don't completely undo the banjo bolts, and the rear yoke, slide the diff forward on the studs and use the old farmers trick...
Plastic baler twine.
Yup, you read that right!
Two or three wraps around the opening and have the ends begin and end at the top. On one of the wraps go around each bolt, I do it on the first wrap. The plastic crushes into place, and after a good heat cycle, when it cools down overnight the plastic melts into the imperfections of the metal mating surface and become a plastic gasket.