rear end leaking out of vent tube while driving on 2000 Dodge Durango

I have had the rear end pulled apart by 2 drifferent mech and they could not find anything even changed to synthic diff fluid to stop foaming, bearing are good,seals are not leaking

by in Rohnert Park, CA on November 08, 2012
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3 answers 4 comments
ANSWER by , November 08, 2012
are they over filling it?
COMMENT by , November 09, 2012
ANSWER by , November 08, 2012
Are they using chrysler synthetic with 2 containers of 'friction modifier'?
COMMENT by , November 08, 2012
good one ziptie.
ANSWER by , November 08, 2012
You are using drifferent mechanics...I would find myself a differential mechanic.
COMMENT by , November 09, 2012
I talked to a differential mechanic and he wanted to move the vent closer to the wheels
COMMENT by , November 12, 2012
Why not find the cause and fix it right? Factory fill on them IS synthetic WITH 2 bottles of their 'friction modifier' If it had regular gear oil in it then that should be flushed out.