Lack of oil can kill them as can letting the pinion flange get loose and the pinion gear starts climbing up the ring gear and wears out the teeth. Pull out the 3rd member and see what is up. You can have it rebuilt if the housing is still OK, good time to change ratios/add locker, etc. Or if stock gears, a used 3rd from the j/y is a good option.

r.c.brown@ieee.org
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