rear diff fluid leak

[03silvaevo]

As I was going to do the rear diff fluids I noticed a leak around the drain plug. So I degreased the area anyway and did the fluid change. Torqued both drain and fill plugs and installed crush washers too. Next day I check the diff again and the leak is in the same spot around the drain plug. Could it be that it needs a new crush washer? I don't hear any grinding or crunching noises from the rear diff. What are your thoughts?

[JohnEB]

I have the same problem with my drain plug on my oil pan so I just put a little bit of rv gasket sealer to seal it up.

[turbolarry]

Whenever I've done my rear diff., I've just reused the stock washer. It's not really a crush washer like the oil drain plug uses, it's just a flat aluminum washer. Maybe change back to a stock one and a see if it works.

[03silvaevo]

I've been using the stock washer ever since my first fluid change. Yes its just a flat washer and not a crush washer(sorry about that). Guess I'll get a new one from Mitsu dealer.

[turbolarry]

Originally Posted by 03silvaevo

I'll get a new one from Mitsu dealer.

.. and tighten to 37 (±6) ft. lbs.